Latest Articles from ZooKeys Latest 100 Articles from ZooKeys https://zookeys.pensoft.net/ Thu, 28 Mar 2024 11:26:35 +0200 Pensoft FeedCreator https://zookeys.pensoft.net/i/logo.jpg Latest Articles from ZooKeys https://zookeys.pensoft.net/ Confirmation of the valid specific status of Dolichovespula kuami Kim & Yoon, 1996 (Hymenoptera, Vespidae) based on molecular and morphological evidence https://zookeys.pensoft.net/article/110224/ ZooKeys 1196: 111-119

DOI: 10.3897/zookeys.1196.110224

Authors: Chang-Jun Kim, Jiang-Li Tan, Jeong Kyu Kim, Moon Bo Choi

Abstract: The taxonomic validity of Dolichovespula kuami, especially in relation to D. flora, has been the subject of a long-term debate. Herein, the valid specific status of the former was supported through an integrated analysis of morphological characters and DNA barcodes. The pronotal rugae and male genitalia of the two species are different, and partial mitochondrial genes (cytochrome oxidase subunit I, COI) indicate that they form significantly distinct lineages. The hitherto unknown male of D. kuami is described for the first time, and a brief discussion of the D. maculata species group is provided.

HTML

XML

PDF

]]>
Research Article Fri, 22 Mar 2024 20:00:05 +0200
New species of redbait from the Philippines (Teleostei, Emmelichthyidae, Emmelichthys) https://zookeys.pensoft.net/article/111161/ ZooKeys 1196: 95-109

DOI: 10.3897/zookeys.1196.111161

Authors: Matthew G. Girard, Mudjekeewis D. Santos, Katherine E. Bemis

Abstract: We describe a new species of redbait in the genus Emmelichthys collected from fish markets on Panay and Cebu islands in the Visayas region of the Philippines. The species is externally similar to E. struhsakeri but is diagnosable by two prominent fleshy papillae associated with the cleithrum and fewer pectoral-fin rays (18–19 vs. 19–21) and gill rakers (30–33 vs. 34–41). Additionally, mitochondrial DNA differentiates this taxon from other species of Emmelichthys. We generate mitochondrial genomes for two of the three type specimens and several other emmelichthyids to place the new taxon in a phylogenetic context. Analysis of the protein-coding mitochondrial loci calls into question the monophyly of two emmelichthyid genera (Emmelichthys and Erythrocles) and highlights the need for subsequent analyses targeting the intrarelationships of the Emmelichthyidae.

HTML

XML

PDF

]]>
Research Article Fri, 22 Mar 2024 20:00:04 +0200
The arboreal snail genus Amphidromus Albers, 1850 (Eupulmonata, Camaenidae) of Southeast Asia: 1. Molecular systematics of some Vietnamese species and related species from Cambodia, Indonesia, and Laos https://zookeys.pensoft.net/article/112146/ ZooKeys 1196: 15-78

DOI: 10.3897/zookeys.1196.112146

Authors: Parin Jirapatrasilp, Chih-Wei Huang, Chirasak Sutcharit, Chi-Tse Lee

Abstract: This paper reassesses the taxonomy and systematics of 11 arboreal snail species in the genus Amphidromus from Vietnam, Cambodia, Indonesia and Laos (A. bozhii Wang, 2019, A. buelowi Fruhstorfer, 1905, A. costifer Smith, 1893, A. haematostoma Möllendorff, 1898, A. ingens Möllendorff, 1900, A. madelineae Thach, 2020, A. metabletus Möllendorff, 1900, A. pankowskianus Thach, 2020, A. placostylus Möllendorff, 1900, A. roseolabiatus Fulton, 1896, and A. thachi Huber, 2015). The taxonomic validity of each species is supported by a phylogenetic analysis of mitochondrial COI and 16S rRNA gene fragments from 17 ingroup taxa. Amphidromus buelowi was found to comprise two populations from two distant localities, one from Mount Singgalang, West Sumatra, Indonesia and the other from southern Vietnam. The samples from southern Vietnam were previously described as A. asper Haas, 1934 and A. franzhuberi Thach, 2016, but they are now treated as junior synonyms of A. buelowi in this study. In addition, two species from Vietnam are described as new to science, viz. A. asperoides Jirapatrasilp & Lee, sp. nov. and A. ingensoides Jirapatrasilp & Lee, sp. nov., each of which is conchologically comparable to A. buelowi and A. ingens, respectively.

HTML

XML

PDF

]]>
Research Article Fri, 22 Mar 2024 19:20:26 +0200
Four new species of the genus Xynobius Foerster (Hymenoptera, Braconidae, Opiinae) from South Korea https://zookeys.pensoft.net/article/115831/ ZooKeys 1193: 219-243

DOI: 10.3897/zookeys.1193.115831

Authors: Yunjong Han, Cornelis van Achterberg, Hyojoong Kim

Abstract: Four new species, Xynobius azonius sp. nov., X. brevifemora sp. nov., X. duoferus sp. nov., and X. stipitoides sp. nov., are described and illustrated, and one species X. geniculatus (Thomson, 1895) is newly reported from South Korea. Xynobius geniculatus (Thomson, 1895) is redescribed and illustrated, and a new combination, Xynobius (Stigmatopoea) cubitalis (Fischer, 1959), comb. nov. is suggested. An identification key to the Xynobius species known from South Korea is provided.

HTML

XML

PDF

]]>
Research Article Thu, 7 Mar 2024 09:46:34 +0200
A new species of the genus Scorpiops Peters, 1861, subgenus Euscorpiops Vachon, 1980 from Thailand (Scorpiones, Scorpiopidae) https://zookeys.pensoft.net/article/113398/ ZooKeys 1193: 161-170

DOI: 10.3897/zookeys.1193.113398

Authors: Wasin Nawanetiwong, Ondřej Košulič, Natapot Warrit, Wilson R. Lourenço, Eric Ythier

Abstract: A new species, Scorpiops (Euscorpiops) krachan sp. nov., belonging to the family Scorpiopidae Kraepelin, 1905 is described based on three adult males and one adult female collected in the Kaeng Krachan National Park, Phetchaburi Province, Thailand. The new species presents most features exhibited by scorpions of the subgenus Euscorpiops and can be characterized notably by a very small size, a sexual dimorphism strongly marked with male pedipalps elongated, a distinct trichobothrial pattern and other morphological features. This new taxon may represent one endemic element for the scorpion fauna of Thailand. Aspects of the ecology and distribution of the new species are discussed and compared with that of other relative Scorpiops species.

HTML

XML

PDF

]]>
Research Article Wed, 6 Mar 2024 11:14:20 +0200
A new species of Svistella Gorochov, 1987 from Xizang, China (Orthoptera, Trigonidiidae, Trigonidiinae) https://zookeys.pensoft.net/article/117612/ ZooKeys 1193: 145-160

DOI: 10.3897/zookeys.1193.117612

Authors: Jing-Wen Hou, Yue Xu, Tian-Hao Hu, Zi-Heng Zhang, Shi-Yang Wu, Pu Gong, Zhu-Qing He

Abstract: The genus Svistella Gorochov, 1987 includes 10 species from Asia, with nine documented in China. In this study, a new species, Svistella yayun He, sp. nov., is described from Xizang, China. Morphologically, it resembles S. rufonotata (Chopard, 1932) but can be distinguished by a smaller inner tympanum, dark-brown setae on the 5th segment of the maxillary palp, and a rounded apex on the ectoparamere. To validate our morphological inferences and support the description of S. yayun sp. nov. as a new species, we performed a PCA based on bioacoustics parameters and molecular analysis. All Svistella species documented in China are distinguished by integrating their songs and DNA barcoding.

HTML

XML

PDF

]]>
Research Article Wed, 6 Mar 2024 11:14:20 +0200
Dimorphostylis pilocorpus sp. nov. (Crustacea, Cumacea, Diastylidae), a new cumacean from Korean waters https://zookeys.pensoft.net/article/115782/ ZooKeys 1193: 1-18

DOI: 10.3897/zookeys.1193.115782

Authors: Sung-Hyun Kim, Taekjun Lee

Abstract: A new species of Cumacea belonging to the genus Dimorphostylis Zimmer was collected from the Dokdo and Ulleung Islands in the East Sea of Korea. The new species, Dimorphostylis pilocorpus sp. nov., can be distinguished from all other Dimorphostylis species by the combination of the body surface covered with numerous slender simple setae; carapace with one transverse, a pair of frontal, and three pairs of oblique ridges; three pairs of oblique ridges connected on a submedian carina; telson of the female with 1 pair of short simple and 1 short, stout simple seta centrally; 1 pair of stout simple and 3 pairs of short simple setae on the post-anal section; pleonite 5 of male with 1 spiniform seta on the ventral margin; post-anal section with 2 pairs of stout simple setae bearing a single subterminal setule on both sides; terminal margin with 3 stout simple setae; and a central seta slightly longer than the outer pair of setae. Full illustrations of the new species, including the mouthparts, are given in this paper. A key to the Korean species of Dimorphostylis is also provided.

HTML

XML

PDF

]]>
Research Article Tue, 27 Feb 2024 17:01:04 +0200
A new feather mite species of the genus Mycterialges Gaud & Atyeo, 1981 (Acari, Xolalgidae) from the Oriental Stork, Ciconia boyciana (Ciconiiformes, Ciconiidae) in Korea https://zookeys.pensoft.net/article/115749/ ZooKeys 1192: 179-196

DOI: 10.3897/zookeys.1192.115749

Authors: Jeong Hun Shim, Yeong-Deok Han, Sukyung Kim, Dongsoo Ha, Yongun Shin, Soo Hyung Eo

Abstract: A new feather mite species, Mycterialges boycianae sp. nov. (Xolalgidae), was identified from the Oriental Stork, Ciconia boyciana Swinhoe, 1873, in Korea. Males of M. boycianae sp. nov. are distinguished from Mycterialges mesomorphus Gaud & Atyeo, 1981, in having a single triangular prodorsal shield, sinuous margins of the opisthosoma located between setae e2 and h2 on the hysteronotal shield, an oval-shaped epiandrum without posterior extensions, a shorter tibia + tarsus IV than femoragenu IV, and an absent ambulacral disc of leg IV. Females differ in having a prodorsal shield with a posterior margin that is blunt-angular, and a concave posterior margin of the hysteronotal shield with posterior extensions. This study presents the first record of the feather mite genus Mycterialges in birds of the genus Ciconia (Ciconiidae). Additionally, we determined the phylogenetic relationship among Ingrassiinae using the mitochondrial cytochrome c oxidase subunit (COI).

HTML

XML

PDF

]]>
Research Article Wed, 21 Feb 2024 16:06:13 +0200
A new genus and species of oceanic planktonic Tisbidae (Crustacea, Copepoda, Harpacticoida) with enlarged modified eyes https://zookeys.pensoft.net/article/114974/ ZooKeys 1191: 307-338

DOI: 10.3897/zookeys.1191.114974

Authors: Sota Komeda, Susumu Ohtsuka, Rony Huys

Abstract: Both sexes of a new monotypic genus of Tisbidae (Copepoda, Harpacticoida) are described from the epi- or mesopelagic zone in the Kuroshio region, Japan. Gyorome guttatum gen. et sp. nov. belongs to a monophyletic lineage of deepwater holoplanktonic genera defined by a suite of characters. Within this clade, Gyorome gen. nov. appears most closely related to Neotisbella Boxshall, 1979. The most distinguishable feature of G. guttatum gen. et sp. nov. is the presence of large, paired, frontal modified eyes, each consisting of a baculiform ocellus, a globular (Gicklhorn’s?) organ, and a semi-parabolic plate. The taxonomic position of Tisbe spinulosa Bradford & Wells, 1983 is discussed and a key to the six meso- and bathypelagic tisbid species is provided. Confusion surrounding earlier literature reports of supernumerary elements on the caudal ramus in some harpacticoid taxa is clarified. Secondary modifications of ocellar components of the typical naupliar eye in the Harpacticoida are reviewed. It is suggested that the development of specialized eyes in G. guttatum gen. et sp. nov. may provide a means for detecting bioluminescent food particles in oligotrophic pelagic environments. The large, vaulted prosome indicates the species is an opportunistic macrophage that has adopted gorging as a feeding strategy.

HTML

XML

PDF

]]>
Research Article Thu, 15 Feb 2024 17:42:18 +0200
A systematic review of the genus Bolbelasmus Boucomont (Coleoptera, Geotrupidae, Bolboceratinae) from Indochina and surrounding areas https://zookeys.pensoft.net/article/114021/ ZooKeys 1191: 287-305

DOI: 10.3897/zookeys.1191.114021

Authors: Chun-Lin Li, Chuan-Chan Wang

Abstract: Indochinese species of the genus Bolbelasmus (Coleoptera, Geotrupidae, Bolboceratinae) are reviewed. Three new species, Bolbelasmus chifengi Wang & Li, sp. nov., Bolbelasmus concavisuturalis Li & Wang, sp. nov. and Bolbelasmus yutangi Li & Wang, sp. nov., are described and illustrated. An annotated checklist and modified key to species of the genus are provided. Information for each species in the checklist includes literature review, synonymy, distribution and type locality.

HTML

XML

PDF

]]>
Research Article Wed, 14 Feb 2024 17:39:11 +0200
Three new species and two newly recorded species of Tachininae from Tibet, China (Arthropoda, Insecta, Diptera, Tachinidae) https://zookeys.pensoft.net/article/105549/ ZooKeys 1191: 215-235

DOI: 10.3897/zookeys.1191.105549

Authors: Ruiqing Dong, Junjian Li, Hui Yang, Chuntian Zhang

Abstract: During our studying of the fauna of Tibet, China, many specimens of the subfamily Tachininae (Diptera, Tachinidae) were collected and examined. Three species are described here as new to science, Leskia latisurstyla sp. nov., Trichoformosomyia cuonaensis sp. nov., and Tachina jilongensis sp. nov., and two species, Nemoraea javana (Brauer & Bergenstamm, 1894) and N. echinata Mesnil, 1953, are newly recorded from Tibet. In addition to their descriptions, illustrations, and diagnoses, three identification keys are provided. The specimens in this study are kept in the Insect Collection of Shenyang Normal University, China (SYNU).

HTML

XML

PDF

]]>
Research Article Tue, 13 Feb 2024 16:39:52 +0200
Revision of the orb-weaver spider genus Gea C.L. Koch, 1843 (Araneae, Araneidae) from China https://zookeys.pensoft.net/article/117592/ ZooKeys 1191: 75-88

DOI: 10.3897/zookeys.1191.117592

Authors: Xiaoqi Mi, Feng Liu, Cheng Wang, Jiahui Gan, Yibei Wu

Abstract: The orb-weaver spider genus Gea C.L. Koch, 1843 from China is revised, and three species including one new species, are recognized: Gea jingdong Mi, Wang & Gan, sp. nov. (♂♀) from Yunnan; Gea spinipes C.L. Koch, 1843 (♂♀) from Guangdong, Guangxi, Guizhou, Hainan, Taiwan, and Yunnan; and Gea subarmata Thorell, 1890 (♂♀) from Guangxi and Hainan. Gea subarmata is newly recorded in China.

HTML

XML

PDF

]]>
Research Article Fri, 9 Feb 2024 09:52:41 +0200
Two new species of Hypodontolaiminae (Nematoda, Chromadorida, Chromadoridae) from the Yellow Sea with a phylogenetic analysis in the subfamily https://zookeys.pensoft.net/article/113418/ ZooKeys 1190: 281-302

DOI: 10.3897/zookeys.1190.113418

Authors: Huixin Liang, Wen Guo, Chunming Wang

Abstract: Two new species of Hypodontolaiminae, Dichromadora media sp. nov. and Neochromadora parabilineata sp. nov., were isolated and described from the Yellow Sea, China. Dichromadora media sp. nov. is characterized by four long cephalic setae, the amphidial fovea transverse oval in the male and slit-shaped in the female, the pharynx with a single posterior bulb, spicules curved and distally bifurcated, gubernaculum jointed, four (1+3) precloacal supplements papilliform, and the tail conical elongated with a short spinneret. Neochromadora parabilineata sp. nov. is characterized by the buccal cavity with one large hollow dorsal tooth and two small subventral teeth, the pharynx with an obvious posterior bulb, spicules L-shaped and widened medially, gubernaculum boat-shaped, seven cup-shaped and equidistant precloacal supplements, and a long and gradually tapering tail. The phylogenetic analysis of maximum likelihood and Bayesian inference based on rDNA sequences confirmed the taxonomic positions of Neochromadora parabilineata sp. nov. and Dichromadora media sp. nov. within Hypodontolaiminae. Tree topology in Hypodontolaiminae shows the genera Neochromadora, Dichromadora, Ptycholaimellus, and Spilophorella as polyphyletic groups, and the genus Chromadorita as a paraphyletic group.

HTML

XML

PDF

]]>
Research Article Tue, 30 Jan 2024 13:08:07 +0200
The millipede family Polydesmidae Leach, 1816 (Diplopoda, Polydesmida) from Vietnam, with a description of a new cavernicolous species https://zookeys.pensoft.net/article/114958/ ZooKeys 1190: 259-280

DOI: 10.3897/zookeys.1190.114958

Authors: Anh D. Nguyen, Tam T. T. Vu, Katsuyuki Eguchi

Abstract: The millipede family Polydesmidae Leach, 1816 is reviewed in the scope of the Vietnamese fauna. The distribution of the species, Polydesmus vietnamicus Nguyen, 2009 is extended northward to Ha Giang Province. A new cavernicolous polydesmid, Pacidesmus tuachua sp. nov., is described from two caves in northwestern Vietnam, representing the first record of the genus from Vietnam. Extensive illustrations and DNA barcodes are provided for both species, a revised key is presented to all 12 species of Pacidesmus Golovatch, 1991, as well as a key to all eight genera of Asian Polydesmidae.

HTML

XML

PDF

]]>
Research Article Tue, 30 Jan 2024 13:07:47 +0200
Molecular phylogeny and taxonomic position of Macrobrachium lanchesteri (De Man, 1911), with descriptions of two new species from Thailand (Decapoda, Caridea, Palaemonidae) https://zookeys.pensoft.net/article/113898/ ZooKeys 1190: 163-193

DOI: 10.3897/zookeys.1190.113898

Authors: Apisara Chaowvieng, Chirasak Sutcharit, Ratmanee Chanabun, Ruttapon Srisonchai, Ekgachai Jeratthitikul, Warut Siriwut

Abstract: Macrobrachium lanchesteri (De Man, 1911), a translucent freshwater prawn has a wide distribution range throughout mainland Southeast Asia. A high morphological variation and genetic divergence between different geographical M. lanchesteri populations in Thailand have peculiarly extended the uncertainty of species boundaries and blended confusingly with several Macrobrachium species. To clarify these circumstances, broad sample examinations of the morphological variation, including topotype specimens, and phylogenetic reconstruction based on the concatenated mitochondrial dataset (16s rRNA and COI genes) were performed. Broad morphological examination of M. lanchesteri has shown congruency with phylogenetic analyses by revealing prominent lineages of M. lanchesteri sensu stricto and two new sibling lineages with interspecific variation between 6.48–8.76% for COI and 3.06–4.23% for 16S. Descriptions of two new species, named herein as M. panhai Chaowvieng & Siriwut, sp. nov. and M. rostrolevatus Chaowvieng & Siriwut, sp. nov. are provided. Morphological investigation of rostral form suggested plasticity in M. rostrolevatus populations showing the morphological trait associated with their habitat preferences. Furthermore, phylogenetic positions of the three taxa affirmed the hidden diversity of Thai freshwater Macrobrachium fauna correlated with the river network in the Mekong and Chao Phraya basins, Thailand. The genetic data and distribution records obtained in this study may also assist future river conservation plans as well as the sustainable management of freshwater prawn diversity.

HTML

XML

PDF

]]>
Research Article Mon, 29 Jan 2024 08:15:51 +0200
Seven new species of the segmented spider genus Liphistius (Mesothelae, Liphistiidae) in Thailand and Myanmar https://zookeys.pensoft.net/article/115850/ ZooKeys 1189: 203-229

DOI: 10.3897/zookeys.1189.115850

Authors: Varat Sivayyapram, Chawakorn Kunsete, Xin Xu, Deborah R. Smith, Prapun Traiyasut, Sureerat Deowanish, Mu Mu Aung, Hirotsugu Ono, Daiqin Li, Natapot Warrit

Abstract: Seven new species of the primitive segmented spider genus Liphistius are described and assigned to species groups based on characters of the male palp and vulva plate. The bristowei group includes L. dawei Sivayyapram & Warrit, sp. nov. (♂♀) from southeastern Myanmar, L. choosaki Sivayyapram & Warrit, sp. nov. (♀) from northwestern Thailand, and L. lansak Sivayyapram & Warrit, sp. nov. (♀) from western Thailand; the trang group (Complex A) contains L. kaengkhoi Sivayyapram & Warrit, sp. nov. (♂♀), L. hintung Sivayyapram & Warrit, sp. nov. (♂♀), L. buyphradi Sivayyapram & Warrit, sp. nov. (♂♀), and L. champakpheaw Sivayyapram & Warrit, sp. nov. (♂♀) from central Thailand.

HTML

XML

PDF

]]>
Research Article Tue, 16 Jan 2024 10:44:13 +0200
Systematic revision of the ant subfamily Leptanillinae (Hymenoptera, Formicidae) https://zookeys.pensoft.net/article/107506/ ZooKeys 1189: 83-184

DOI: 10.3897/zookeys.1189.107506

Authors: Zachary Griebenow

Abstract: The genus-level taxonomy of the ant subfamily Leptanillinae (Hymenoptera: Formicidae) is here revised, with the aim of delimiting genus-level taxa that are reciprocally monophyletic and readily diagnosable based upon all adult forms. This new classification reflects molecular phylogenetics and is informed by joint consideration of both male and worker morphology. Three valid genera are recognized in the Leptanillinae: Opamyrma, Leptanilla (= Scyphodon syn. nov., Phaulomyrma, Leptomesites, Noonilla syn. nov., Yavnella syn. nov.), and Protanilla (= Anomalomyrma syn. nov., Furcotanilla). Leptanilla and Protanilla are further divided into informal, monophyletic species groups. Synoptic diagnoses are provided for all genera and informal supraspecific groupings. In addition, worker-based keys to all described species within the Leptanillinae for which the worker caste is known are provided; and male-based keys to all species for which males are known, plus undescribed male morphospecies for which molecular data are published. The following species are described as new: Protanilla wallacei sp. nov., Leptanilla acherontia sp. nov., Leptanilla belantan sp. nov., Leptanilla bethyloides sp. nov., and Leptanilla najaphalla sp. nov.

HTML

XML

PDF

]]>
Monograph Tue, 16 Jan 2024 10:44:13 +0200
Description of three new species of Callyntrura (Japonphysa) (Collembola, Entomobryidae) from China with the aid of DNA barcoding https://zookeys.pensoft.net/article/109608/ ZooKeys 1187: 237-260

DOI: 10.3897/zookeys.1187.109608

Authors: Mei-Dong Jing, Yin-Huan Ding, Yi-Tong Ма

Abstract: Callyntrura(s.l.) Börner, 1906 is the largest genus of the subfamily Salininae and contains 11 subgenera and 98 species from all over the world (mainly Asia), with eight species recorded from China. In the present paper, three new species of Callyntrura(s.l.) are described from China: C. (Japonphysa) xinjianensis sp. nov.; C. (J.) tongguensis sp. nov. and C. (J.) raoi sp. nov. Their differences in colour pattern, chaetotaxy and other characters are slight, however distances of COI mtDNA support their validation as three new distinct species. A key to the Chinese Callyntrura(s.l.) is provided.

HTML

XML

PDF

]]>
Research Article Thu, 21 Dec 2023 20:07:39 +0200
Corrections and additions to the catalogue of the bees (Hymenoptera, Anthophila) of Russia https://zookeys.pensoft.net/article/113240/ ZooKeys 1187: 301-339

DOI: 10.3897/zookeys.1187.113240

Authors: Maxim Yu. Proshchalykin, Alexander V. Fateryga, Yulia V. Astafurova

Abstract: The present study is an update to the first catalogue of Russian bees published in 2017. For the Russian fauna, five recently described species are reported, as well as 45 species newly recorded since the first catalogue (including one invasive species), nine species overlooked in this previous Russian checklist, and 17 published synonymies. Original records are provided for nine species previously unknown to Russia and, as a taxonomic act, one species, Anthidium ovasi Warncke, 1980, syn. nov., is synonymised with Icteranthidium floripetum (Eversmann, 1852). Additionally, 14 species are excluded from the original catalogue and numerous other taxonomic changes and clarifications are included. The present work revises the total number of genera for Russia to 64 and the total number of species to 1,268.

HTML

XML

PDF

]]>
Research Article Thu, 21 Dec 2023 19:56:05 +0200
A review of the anthidiine bees (Apoidea, Megachilidae) in Thailand https://zookeys.pensoft.net/article/95203/ ZooKeys 1186: 235-284

DOI: 10.3897/zookeys.1186.95203

Authors: Pakorn Nalinrachatakan, John S. Ascher, Max Kasparek, Prapun Traiyasut, Chawatat Thanoosing, Natapot Warrit

Abstract: Bees of the tribe Anthidiini (Apoidea: Megachilidae) are notable pollinators consisting of resin bees, wool-carder bees, and cleptoparasitic bees. Twelve anthidiine species were historically reported in Thailand, though the taxonomic information of the group was needed revising. In this study, 165 (97♀, 68♂) anthidiine bee specimens deposited at the Chulalongkorn University Natural History Museum, Thailand, were examined with material obtained from various museum collections. Specimens were principally collected in Thailand with some from Laos and Myanmar. Here, at least eight genera and 15 species of anthidiine bees are recognized: Anthidiellum (5), Bathanthidium (1), Eoanthidium (1), Euaspis (4), Pachyanthidium (1), Pseudoanthidium (1), Stelis (1), and Trachusa (1). Dianthidium chinensis Wu, 1962, Eoanthidium chinensis (Wu, 1962), Eoanthidium semicarinatum Pasteels, 1972, and Eoanthidium punjabensis Gupta & Sharma, 1953 are relegated as junior synonyms of Eoanthidium (Hemidiellum) riparium (Cockerell, 1929), stat. nov. Both Anthidiellum (Pycnanthidium) latipes (Bingham, 1897) from Phang Nga and Euaspis aff. wegneri Baker, 1995 from Chumphon were identified as new records for Thailand. Trachusa aff. vietnamensis Flaminio & Quaranta, 2021 from Phitsanulok is a new record for the genus found in Thailand, whereas Pseudoanthidium (Pseudoanthidium) orientale (Bingham, 1897) is a new record for Laos. Annotated comments are provided for some taxa and identification keys for the Thai anthidiine bees is provided.

HTML

XML

PDF

]]>
Research Article Tue, 19 Dec 2023 17:06:14 +0200
A new species of pit-viper from the Ayeyarwady and Yangon regions in Myanmar (Viperidae, Trimeresurus) https://zookeys.pensoft.net/article/110422/ ZooKeys 1186: 221-234

DOI: 10.3897/zookeys.1186.110422

Authors: Kin Onn Chan, Shahrul Anuar, Ananthanarayanan Sankar, Ingg Thong Law, Ing Sind Law, Rasu Shivaram, Ching Christian, Daniel G. Mulcahy, Anita Malhotra

Abstract: In a genomic study by Chan and colleagues, pit-vipers of the Trimeresurus erythrurus–purpureomaculatus complex from the Ayeyarwady and Yangon regions in Myanmar were demonstrated to be a distinct species based on robust population genetic and species delimitation analyses. Here, we provide morphological characterizations and a formal description of those populations as a new species. The new species, Trimeresurus ayeyarwadyensis sp. nov., is most closely related to T. erythrurus and T. purpureomaculatus and shares morphological characteristics with both of those species. Some specimens of T. ayeyarwadyensis sp. nov. have green dorsal coloration and no distinct dorsal blotches (a trait shared with T. erythrurus but not T. purpureomaculatus), while others have dark dorsal blotches (a trait shared with T. purpureomaculatus but not T. erythrurus). The distinct evolutionary trajectory of the new species, coupled with the lack of obvious morphological differentiation, represents a classic example of the cryptic nature of species commonly found in the Trimeresurus group of Asian pit-vipers and underscores the need for data-rich analyses to verify species’ boundaries more broadly within this genus.

HTML

XML

PDF

]]>
Research Article Wed, 13 Dec 2023 18:29:41 +0200
The tropiduchid planthopper genus Connelicita Wang & Bourgoin, 2015: two new species from Central Vietnam and new records (Hemiptera, Fulgoromorpha, Tropiduchidae) https://zookeys.pensoft.net/article/113701/ ZooKeys 1186: 105-122

DOI: 10.3897/zookeys.1186.113701

Authors: Jérôme Constant, Thai-Hong Pham, Cuong Viet Canh Le, Trung Thanh Vu, Hoai Thu Thi Nguyen

Abstract: Two new planthopper species of the tropiduchid genus Connelicita Wang & Bourgoin, 2015, C. bachmaensis Constant & Pham, sp. nov., and C. phongdienensis Constant & Pham, sp. nov. are described from Bach Ma National Park and from the Centre for Conservation of Vietnam Natural Resources and Rescue of Animals and plants, Phong Dien District in Thua Thien-Hue Province, respectively. These new records greatly extend the distribution of the genus, which was known from southern China (Guangxi) and North Vietnam, to the south, reaching the mid area of Central Vietnam. New records are provided for C. haiphongensis Wang & Zhang, 2015, extending the distribution of the species from Cat Ba Island to a large zone in North Vietnam. Illustrations of habitus, details, and male genitalia are given as well as a distribution map and photographs of the habitat. An identification key to the species of Vietnam is provided. The genus Connelicita now comprises five species.

HTML

XML

PDF

]]>
Research Article Tue, 12 Dec 2023 10:31:01 +0200
A new bamboo-feeding species of the genus Pseudosymplanella Che, Zhang & Webb, 2009 (Hemiptera, Caliscelidae, Ommatidiotinae) from China https://zookeys.pensoft.net/article/111838/ ZooKeys 1186: 97-104

DOI: 10.3897/zookeys.1186.111838

Authors: Nian Gong, Xiang-Sheng Chen, Lin Yang

Abstract: A new planthopper species, Pseudosymplanella maxima sp. nov., belonging to the genus Pseudosymplanella (Hemiptera: Fulgoromorpha: Caliscelidae: Augilini), is described and illustrated, from China. In common with other Chinese Augilini, the new species feeds exclusively on bamboo. Additionally, a key to the two species of Pseudosymplanella is provided.

HTML

XML

PDF

]]>
Research Article Mon, 11 Dec 2023 20:13:31 +0200
Simonia gen. nov., a new spider genus (Araneae, Theridiosomatidae) from Southeast Asia https://zookeys.pensoft.net/article/104120/ ZooKeys 1185: 277-294

DOI: 10.3897/zookeys.1185.104120

Authors: Jianshuang Zhang, Hao Yu, Yucheng Lin

Abstract: A new theridiosomatid genus, Simonia Yu & Lin, gen. nov., is described, with Baalzebub youyiensis Zhao & Li, 2012 (♂♀, China, Vietnam and Laos) as the type species. Three species are included in Simonia gen. nov., i.e., S. youyiensis (Zhao & Li, 2012) comb. nov. ex. Baalzebub, S. steineri Yu & Lin, sp. nov. (♀, Huapan, Laos), and S. sumatra Yu & Lin, sp. nov. (♀, Sumatra, Indonesia). A key to theridiosomatid genera endemic to the Oriental Realm and a key to species of the new genus are provided, as well as diagnoses, descriptions and a distribution map for the species of Simonia gen. nov.

HTML

XML

PDF

]]>
Research Article Thu, 30 Nov 2023 18:35:48 +0200
An update to the taxonomy of Serica MacLeay, 1819 (sensu lato) from China (Coleoptera, Scarabaeidae, Sericinae, Sericini) https://zookeys.pensoft.net/article/109154/ ZooKeys 1185: 181-198

DOI: 10.3897/zookeys.1185.109154

Authors: Xie Su, Wei Li, Wan-Gang Liu, Dirk Ahrens, Ying-Juan Zheng, Yang Liu

Abstract: In this paper we update the knowledge on the species of Serica McLeay, 1819 (sensu lato) occurring in Yunnan, Sichuan, and Shaanxi provinces, China. Three new species are described: Serica allonanhua Liu, Ahrens, Li & Su, sp. nov., S. breviantennalis Liu, Ahrens, Li & Su, sp. nov., and S. fengensis Liu, Ahrens, Li & Su, sp. nov. The key to the species groups and species is updated. The habitus and male genitalia of the new species are illustrated, and a map showing their distribution is provided. New distributional data are given for four species.

HTML

XML

PDF

]]>
Research Article Tue, 28 Nov 2023 20:06:20 +0200
Four new species of Sphaeroderma Stephens (Coleoptera, Chrysomelidae, Galerucinae, Alticini) from Taiwan, with discussion on genus boundaries based on S. flavonotatum Chûjô and S. jungchani sp. nov. https://zookeys.pensoft.net/article/112099/ ZooKeys 1185: 1-19

DOI: 10.3897/zookeys.1185.112099

Authors: Chi-Feng Lee

Abstract: Three new species of Sphaeroderma Stephens, 1831, S. hsui sp. nov., S. changi sp. nov., and S. sheipaensis sp. nov. are described based on specimens from Shei-Pa National Park, Taiwan. A fourth new species, S. jungchani sp. nov., is described based on specimens from southern Taiwan. Delimitation of the genus is discussed based on S. flavonotatum Chûjô, 1937, which is redescribed, and the new species, S. jungchani sp. nov.

HTML

XML

PDF

]]>
Research Article Mon, 27 Nov 2023 12:38:34 +0200
On the synonymy of Dactylopisthoides Eskov, 1990 and Uusitaloia Marusik, Koponen & Danilov, 2001 (Araneae, Linyphiidae) https://zookeys.pensoft.net/article/113255/ ZooKeys 1184: 291-299

DOI: 10.3897/zookeys.1184.113255

Authors: Andrei Tanasevitch, Yuri Marusik

Abstract: Two erigonine genera from East Siberia are synonymized: Uusitaloia Marusik, Koponen & Danilov, 2001, syn. nov. = Dactylopisthoides Eskov, 1990. Two new combinations are established: Dactylopisthoides transbaicalicus (Marusik, Koponen & Danilov, 2001), comb. nov. and Dactylopisthoides wrangelianus (Marusik & Koponen, 2009), comb. nov. both ex. Uusitaloia. The epigyne of D. wrangelianus is illustrated for the first time. A new, updated diagnosis of Dactylopisthoides is proposed. The copulatory organs of both sexes of D. hyperboreus and D. wrangelianus are illustrated by SEM images.

HTML

XML

PDF

]]>
Research Article Tue, 21 Nov 2023 14:41:30 +0200
Going deeper and further: a range and depth extension for the deep-sea feather star Paratelecrinus cubensis (Carpenter, 1881) (Comatulida, Atelecrinidae), first record from the Western Pacific https://zookeys.pensoft.net/article/110577/ ZooKeys 1184: 103-113

DOI: 10.3897/zookeys.1184.110577

Authors: Zijie Mei, Zhongli Sha, Shao’e Sun

Abstract: A specimen belonging to the deep-sea feather-star family Atelecrinidae was collected in April 2018 at the Kocebu Guyot at 1294 m deep. Based on its morphological characters, the specimen was identified as Paratelecrinus cubensis (Carpenter, 1881). This species of feather star is restricted to the deep sea and was known only from 12 records from the Bahamas and Cuba at depths of 567–892 m. The data represent the first record from the Western Pacific Ocean and the deepest record known, extending the depth where this feather star has been found to beyond 1000 m. The morphological characteristics of the Kocebu Guyot specimen were essentially identical to the morphology of the neotype, with a slight difference in the dorsal spine at the end of the cirri. The phylogenetic analysis based on the mitochondrial cytochrome c oxidase subunit I (COI), 16S rRNA genes, 28S rRNA genes, and 18S rRNA genes reveal a close relationship of P. cubensis with P. wyvilli. Results of our molecular phylogenetic analysis are consistent with our morphological identifications. Our find extends the known geographical distribution of the feather star P. cubensis to the Western Pacific Ocean and provide insights into deep-sea biodiversity in the Kocebu Guyot.

HTML

XML

PDF

]]>
Research Article Wed, 15 Nov 2023 17:48:37 +0200
A new species of Rhagophthalmus Motschulsky, 1854 (Coleoptera, Rhagophthalmidae) from Laos represents the smallest known member of the genus https://zookeys.pensoft.net/article/112437/ ZooKeys 1184: 81-89

DOI: 10.3897/zookeys.1184.112437

Authors: Gabriela Packova, Robin Kundrata

Abstract: Rhagophthalmus Motschulsky, 1854 is the most speciose genus in Rhagophthalmidae, distributed in the region encompassing South, East, and Southeast Asia. Here, we describe R. nanus sp. nov. from the Houaphanh Province of eastern Laos, which represents the smallest known species in Rhagophthalmus and one of the smallest in Rhagophthalmidae. We compare it with the morphologically similar and geographically close congeners and provide a preliminary identification key to adult males of Rhagophthalmus species from mainland Southeast Asia. Additionally, we discuss the morphology and variability of male genitalia within Rhagophthalmus.

HTML

XML

PDF

]]>
Research Article Tue, 14 Nov 2023 16:10:11 +0200
First discovery of the ant genus Eburopone Borowiec, 2016 (Hymenoptera, Formicidae, Dorylinae) in the Oriental realm, with description of a new species from Vietnam https://zookeys.pensoft.net/article/109702/ ZooKeys 1184: 1-17

DOI: 10.3897/zookeys.1184.109702

Authors: Aiki Yamada, Dai Dac Nguyen, Katsuyuki Eguchi

Abstract: The doryline ant genus Eburopone Borowiec, 2016 currently contains only one valid species, E. wroughtoni (Forel, 1910) from southern Africa, with a considerable number of undescribed species awaiting formal description in the Afrotropical and Malagasy regions. In the present paper, Eburopone easoana sp. nov. is described based on workers and dealate queens from a colony series collected in an evergreen forest on the Dak Lak Plateau of Vietnam (Ea So Nature Reserve, Dak Lak Province). The worker of the new species is morphologically clearly distinguished from E. wroughtoni by the combination of following characteristics: i) frontal line distinct, extending a little beyond mid-length of cranium; ii) anterior (frontoclypeal) margins of torulo-posttorular complex not forming conspicuous lobes protruding over anterior clypeal margin in full-face view; iii) mandibles when closed in full-face view forming only a little space between anterior clypeal margin and mandibles; iv) promesonotal suture faint and inconspicuous; v) abdominal segment III in dorsal view distinctly wider than long, with lateral margins only feebly convex. This represents the first discovery of the genus Eburopone in the Oriental realm, revealing the disjunct distribution of the genus. A partial sequence of the mitochondrial COI gene (658 bp) is provided as a DNA barcode for the new species. A worker-based key to the doryline genera of the Oriental realm is also provided.

HTML

XML

PDF

]]>
Research Article Fri, 10 Nov 2023 10:33:05 +0200
Taxonomic clarification and lectotype designation for Cryphalus striatulus Mannerheim, 1853 (non Browne, 1978, nec Browne, 1981) (Coleoptera, Curculionidae, Scolytinae), and notes on pervasive homonymy https://zookeys.pensoft.net/article/107660/ ZooKeys 1183: 121-124

DOI: 10.3897/zookeys.1183.107660

Authors: Matteo Marchioro, Andrew J. Johnson, Laura Besana, Michail Yu. Mandelshtam, Massimo Faccoli, Enrico Ruzzier

Abstract:

HTML

XML

PDF

]]>
Short Communication Thu, 2 Nov 2023 14:08:22 +0200
Two new bamboo-feeding species of the planthopper genus Bambusicaliscelis Chen & Zhang, 2011 (Hemiptera, Fulgoromorpha, Caliscelidae) from China https://zookeys.pensoft.net/article/110917/ ZooKeys 1183: 111-120

DOI: 10.3897/zookeys.1183.110917

Authors: Nian Gong, Xiang-Sheng Chen, Lin Yang

Abstract: Two new species of the Chinese caliscelid planthopper genus Bambusicaliscelis Chen & Zhang, 2011, B. bibulbus sp. nov. from Fujian Province and B. clavatus sp. nov. from Jiangxi Province, are described and illustrated. The genus now known to include six described species. A checklist and identification key to Bambusicaliscelis species are provided.

HTML

XML

PDF

]]>
Research Article Wed, 1 Nov 2023 11:58:29 +0200
Formosania immaculata, a new species of hillstream loach (Teleostei, Cypriniformes, Gastromyzontidae) from the Ou-Jiang River, Southeast China https://zookeys.pensoft.net/article/104240/ ZooKeys 1182: 207-221

DOI: 10.3897/zookeys.1182.104240

Authors: Wei Sun, Jia-Jun Zhou, Jin-Quan Yang

Abstract: Formosania immaculata, a new species, is described from the Ou-Jiang basin in Zhejiang Province, Southeast China. It is distinguished from other species of the genus by having a combination of the following characteristics: body without obvious mottling; snout length longer than postorbital length; abdominal scaleless area extending to middle of pectoral-fin base; shorter rostral barbels, the outermost pair length 112.9%–140.0% of eye diameter; and shorter lower lip papillae, length 19.9%–24.4% of eye diameter. Its validity is also affirmed by its distinct Cytb gene sequence divergence from all congeners and its monophyly recovered in a Cytb gene-based phylogenetic analysis.

HTML

XML

PDF

]]>
Research Article Mon, 16 Oct 2023 18:20:39 +0300
Five new species of Bryaxis Kugelann (Coleoptera, Staphylinidae, Pselaphinae) from Korea and a nomenclatural note on Bryaxis mahunkai Löbl https://zookeys.pensoft.net/article/97346/ ZooKeys 1182: 165-181

DOI: 10.3897/zookeys.1182.97346

Authors: Yeon-Jae Choi, Sun-Jae Park, Seung-Gyu Lee, Jong-Seok Park

Abstract: The genus Bryaxis Kugelann (Goniaceritae: Bythinini) is the most species-rich genus of the subfamily Pselaphinae and is mainly distributed in the Palearctic region. Although previous studies have documented 14 species in the Korean Peninsula, the true diversity, ecology, and immature stages of the genus are still inadequately known. In this study, five new Korean species are described: B. grandinodus sp. nov., B. uljinensis sp. nov., B. fabaiformis sp. nov., B. girinensis sp. nov., and B. nemorosus sp. nov. Illustrations of the habitus and other morphological details, and a distribution map are provided. In addition, Bryaxis leechanyoungi Nomura & Lee, 1993 is proposed as a new synonym of B. mahunkai Löbl, 1975 based on the original description and illustrations of diagnostic characters.

HTML

XML

PDF

]]>
Research Article Fri, 13 Oct 2023 18:50:38 +0300
One new genus and four new species of Liocranidae Simon, 1897 (Arachnida, Araneae) from China and Vietnam https://zookeys.pensoft.net/article/108822/ ZooKeys 1181: 219-240

DOI: 10.3897/zookeys.1181.108822

Authors: Chang Chu, Shuqiang Li, Yanbin Yao, Zhiyuan Yao

Abstract: Four new species of the family Liocranidae are described from China and Vietnam. The new genus Sinocranum gen. nov., is erected to accommodate S. menghai sp. nov. (♂♀) from China. Further new species described include Koppe ninger sp. nov. (♀) from China, Xantharia baizilongi sp. nov. (♂♀) from China and X. cucphuong sp. nov. (♂) from Vietnam. In addition, Xantharia is transferred from Miturgidae to Liocranidae. Koppe and Xantharia are reported from China and Vietnam, respectively, for the first time.

HTML

XML

PDF

]]>
Research Article Fri, 6 Oct 2023 19:10:51 +0300
Utility of cytochrome c oxidase I for the deciphering of unstable phylogeny and taxonomy of gorals, genus Nemorhaedus Hamilton Smith, 1827 (Bovidae, Ovibovina) https://zookeys.pensoft.net/article/108019/ ZooKeys 1181: 81-110

DOI: 10.3897/zookeys.1181.108019

Authors: Petr Hrabina, Ludmila Pernerová, Josef Suchomel, Jan Robovský

Abstract: Gorals represent ungulate mammals of the Palearctic and Indo-Malayan realms that face habitat destruction and intense hunting pressure. Their classification has been the subject of various (mainly genetic) assessments in the last decade, but some results are conflicting, hampering some conservation-based decisions. Genetic sampling of gorals has increased considerably in recent years, at least for mitochondrial (mt) DNA. Results based on two mt genes (cytochrome b and the D-loop) are currently available. Still, the utility of cytochrome oxidase subunit I remains unanalysed, even though it belongs among the gene markers that enable a correct species identification in mammals. This study examines phylogenetic relationships and species delimitation in gorals using all currently available cytochrome oxidase subunit I sequences, including the not yet analysed goral population from Pakistan. Our results of various phylogenetic approaches, such as maximum parsimony, likelihood and Bayesian inference, and exploration of species boundaries via species delimitation support the validity of six species of goral, namely N. baileyi, N. caudatus, N. cranbrooki, N. evansi, N. goral, and N. griseus. This result accords well with results based on other mt genes, especially the cytochrome b from the highly exhaustive data sampling. Our study also summarises common sources of errors in the assessment of goral phylogeny and taxonomy and highlights future priorities in understanding goral diversification.

HTML

XML

PDF

]]>
Research Article Mon, 2 Oct 2023 11:00:27 +0300
A new jewel-like species of the pill-millipede genus Sphaerobelum Verhoeff, 1924 (Diplopoda, Sphaerotheriida, Zephroniidae) from Thailand https://zookeys.pensoft.net/article/109076/ ZooKeys 1181: 41-57

DOI: 10.3897/zookeys.1181.109076

Authors: Ruttapon Srisonchai, Natdanai Likhitrakarn, Chirasak Sutcharit, Thierry Backeljau, Piyatida Pimvichai

Abstract: A new species of the giant pill millipede genus Sphaerobelum is described: Sphaerobelum turcosa sp. nov. from the northeastern part of Thailand. Species delimitation is based on morphological characters and COI sequence data. The new species can be clearly discriminated from congeners by its greenish-blue body color, the face mask-like appearance of the thoracic and anal shields jointly when rolled up, and the combination of the following four characters: (1) the coxa of the second leg laterally with a sharp and long process, (2) the tarsi of legs 4–21 with 6–7 ventral spines, (3) the anterior telopods consisting of four conspicuous telopoditomeres, and (4) the immovable, slender (not strongly humped) and distally curved finger of the posterior telopods without a membranous spot. The interspecific COI sequence divergence between the new species and other Sphaerobelum species ranges from 17% to 23% (mean 20%). The intergeneric COI sequence divergence between the new species and Zephronia species ranges from 18% to 21% (mean 20%). The relationships among Sphaerobelum and Zephronia species based on the COI sequence data were not resolved in this study. Sphaerobelum turcosa sp. nov. is restricted to limestone habitat in Loei province and is probably endemic for the Thai fauna.

HTML

XML

PDF

]]>
Research Article Fri, 29 Sep 2023 16:17:00 +0300
A new species of torrent catfish, Liobagrus geumgangensis (Teleostei, Siluriformes, Amblycipitidae), from Korea https://zookeys.pensoft.net/article/105233/ ZooKeys 1180: 317-332

DOI: 10.3897/zookeys.1180.105233

Authors: Su-hwan Kim, Seung-woon Yun, Jong-young Park

Abstract: In a recent survey of populations of the Korean torrent catfish Liobagrus, a distinctive species was discovered from the Geum River and its tributaries flowing into the western coast of Korea, and here described as a new species, L. geumgangensis sp. nov. It is distinguishable from other congeners by a combination of the following characters: I, 8 pectoral fin-rays; 52–56 caudal-fin rays; a relatively short occiput to dorsal-fin origin distance (6.9–9.8% SL); a short pelvic-fin insertion to anal-fin origin distance (11.9–17.3% SL); a long dorsal-fin base (10.6–13.5% SL); 8–9 gill rakers; 5–8 serrations on the pectoral fin; the body and fins are dark yellow, the margins of the dorsal, anal, and caudal fins are dark brown, but the outermost rim is faintly yellow. Analysis of the cytb gene also confirmed that L. geumgangensis is a monophyletic lineage distinct from other congeners.

HTML

XML

PDF

]]>
Research Article Tue, 26 Sep 2023 10:49:01 +0300
A new electric-blue tarantula species of the genus Chilobrachys Karsh, 1892 from Thailand (Araneae, Mygalomorphae, Theraphosidae) https://zookeys.pensoft.net/article/106278/ ZooKeys 1180: 105-128

DOI: 10.3897/zookeys.1180.106278

Authors: Narin Chomphuphuang, Zongtum Sippawat, Patipan Sriranan, Paveen Piyatrakulchai, Chaowalit Songsangchote

Abstract: The enchanting phenomenon of blue coloration in animals arises from the fact that blue is one of the rarest colors found in nature, and it is a structural color that is produced by the arrangement of biological photonic nanostructures, rather than pigments. This unique coloration has evolved independently in many different species, adding to the fascination and diversity of coloration patterns in the animal kingdom. This study describes a new species of Chilobrachys Karsch, 1892 from southern Thailand that exhibits a blue-violet hue resembling the color of electrical sparks. Photographic illustrations, a morphological description, and the natural habitat of the new species are given. The diagnosis, palpal-bulb structures, spermathecae, and stridulatory organ morphology of related species are discussed.

HTML

XML

PDF

]]>
Research Article Mon, 18 Sep 2023 18:04:55 +0300
The first record of the genus Julolaelaps Berlese (Acari, Mesostigmata, Laelapidae) in Republic of Korea and description of a new species on a captive giant African millipede (Spirostreptidae, Archispirostreptus) https://zookeys.pensoft.net/article/109099/ ZooKeys 1180: 51-65

DOI: 10.3897/zookeys.1180.109099

Authors: Omid Joharchi, Seoyoung Keum, Chuleui Jung

Abstract: This paper reports on a new species of mite of the genus Julolaelaps Berlese in Republic of Korea. Females and males of a new species, Julolaelaps gigas sp. nov., were collected on a captive giant African millipede, Archispirostreptus gigas (Spirostreptida: Spirostreptidae). The new species is described and illustrated based on morphological characters of the adult females and males and compared with known congeners. This new species is the first record of Julolaelaps from Republic of Korea. In addition, an updated key to all known species of the genus is presented.

HTML

XML

PDF

]]>
Research Article Fri, 15 Sep 2023 09:59:39 +0300
Two new karst-adapted species in the Cyrtodactylus pulchellus group (Reptilia, Gekkonidae) from southern Thailand https://zookeys.pensoft.net/article/109712/ ZooKeys 1179: 313-352

DOI: 10.3897/zookeys.1179.109712

Authors: Korkhwan Termprayoon, Attapol Rujirawan, L. Lee Grismer, Perry L. Wood Jr, Anchalee Aowphol

Abstract: The exploration of unsurveyed areas in southern Thailand discovered two new karst-adapted species, Cyrtodactylus sungaiupe sp. nov. and Cyrtodactylus wangkhramensis sp. nov., from Thung Wa and La-ngu Districts, Satun Province, respectively. These new species are members of the C. pulchellus group that occur along the Thai-Malay Peninsula. The new species can be distinguished from all other congeners by their key morphological characters and genetic divergence. Morphologically, Cyrtodactylus sungaiupe sp. nov. and Cyrtodactylus wangkhramensis sp. nov. can be diagnosed from other members by having a combination of differences in body size; degree of dorsal tuberculation; absence of tubercles on ventral surfaces; number of ventral scales, paravertebral tubercles and femoroprecloacal pores in males only; deep precloacal groove only in males; absence of a scattered pattern of white dorsal tubercles; number of dark body bands; and the extent of caudal tubercles on an original tail. Although the two species are sister taxa and have nearly identical morphologies, they are considered to be different species, based on a relatively high uncorrected pairwise genetic divergence of the mitochondrial ND2 gene (6.59–6.89%), statistically significant univariate and multivariate morphological differences (PERMANOVA and ANOVA) and diagnostic characteristics of caudal tuberculation on the original tail. Moreover, Cyrtodactylus sungaiupe sp. nov. and Cyrtodactylus wangkhramensis sp. nov. are currently restricted to their karstic type localities which may serve as a geographic barrier to dispersal and gene flow.

HTML

XML

PDF

]]>
Research Article Thu, 14 Sep 2023 16:21:34 +0300
Taxonomic review of the Oriental genus Polyplocia Lestage, 1921 (Ephemeroptera, Euthyplociidae), with two new records for Thailand https://zookeys.pensoft.net/article/107312/ ZooKeys 1179: 197-217

DOI: 10.3897/zookeys.1179.107312

Authors: Sedtawut Kwanboon, Boonsatien Boonsoong, Chanaporn Suttinun

Abstract: Previously, the euthyplociid mayfly from Thailand was reported as Polyplocia spp. without designation to any nominal species. In this study, the genus Polyplocia Lestage, 1921 in Thailand was reviewed. Two species are recognized: Polyplocia orientalis Nguyen & Bae, 2003 and P. nebulosa Gonçalves & Peters, 2016. This is the first report of P. nebulosa in Continental Asia. Cytochrome c oxidase subunit I (COI) data and illustrations based on nymphal characters were used to confirm two different species in Thailand. Additional morphological characteristics of the nymph and eggs of the two species from Thailand are also shown in detail. The taxonomic status of Polyplocia in the Oriental region is reviewed. Keys to known nymphal and imaginal stages are provided and the distribution of Polyplocia in the Oriental region is discussed.

HTML

XML

PDF

]]>
Research Article Mon, 11 Sep 2023 10:17:54 +0300
A preliminary review of Isonychia Eaton, 1871 from Chinese mainland with a re-description of I. kiangsinensis Hsu, 1936 (Insecta, Ephemeroptera, Isonychiidae) https://zookeys.pensoft.net/article/104619/ ZooKeys 1178: 115-141

DOI: 10.3897/zookeys.1178.104619

Authors: Xin-He Qiang, Chang-Fa Zhou

Abstract: Previously, seven species of the genus Isonychia Eaton, 1871 were reported in China, but they have never been systematically reviewed. After examining our collections from the Chinese mainland, six species and one additional subspecies have been recognized, compared, and photographed. Among them, I. kiangsinensis is redescribed in all stages and a neotype is designated. Its males have triangular penes and nymphs have three dark pigments on each gill. A synonym of I. guixiensis Wu et al., 1992 (I. sinensis Wu et al., 1992) is confirmed. The males of this species have nearly cylindrical penes and clear abdominal markings. Finally, two species and one subspecies are recorded for the first time in China: I. ussurica sibirica Tiunova et al., 2004, I. ussurica ussurica Bajkova, 1970 and I. vshivkovae vshivkovae Tiunova et al., 2004. Together with the I. ignota (Walker, 1853), I. sexpetala Tiunova et al., 2004, I. formosana (Ulmer, 1912) and possible I. japonica (Ulmer, 1920), they show the rich diversity of the genus Isonychia in China.

HTML

XML

PDF

]]>
Research Article Mon, 4 Sep 2023 17:50:36 +0300
Five new species of the Pholcus phungiformes species group (Araneae, Pholcidae) from South Korea https://zookeys.pensoft.net/article/104780/ ZooKeys 1178: 97-114

DOI: 10.3897/zookeys.1178.104780

Authors: Chang Moon Jang, Yang Seop Bae, Sue Yeon Lee, Jung Sun Yoo, Seung Tae Kim

Abstract: Five new spider species of the genus Pholcus Walckenaer, 1805, P. duryun sp. nov., P. hwaam sp. nov., P. mohang sp. nov., P. worak sp. nov., and P. yangpyeong sp. nov., belonging to the P. phungiformes group in the family Pholcidae C. L. Koch, 1850, are newly described from South Korea. These new species were collected from mixed forests in mountainous, hilly, and coastal terrains. This study provides the diagnoses, detailed descriptions, distribution maps, and taxonomic photographs of these new species.

HTML

XML

PDF

]]>
Research Article Mon, 4 Sep 2023 17:49:20 +0300
Demarchus hsui (Coleoptera, Chrysomelidae, Galerucinae, Alticini), a new species from Taiwan, with notes on immatures and biology https://zookeys.pensoft.net/article/97854/ ZooKeys 1177: 3-21

DOI: 10.3897/zookeys.1177.97854

Authors: Chi-Feng Lee, Jung-Chan Chen

Abstract: A new species of the little-known genus Demarchus Jacoby was discovered at Pilu, East Taiwan, and is here described as Demarchus hsui sp. nov. The larvae and adults utilise showy mistletoes as food plants. Their remarkable biology is described in detail, including egg deposition and leaf mining behaviour. Their biology is compared with that of other members of the genus.

HTML

XML

PDF

]]>
Research Article Wed, 30 Aug 2023 17:58:02 +0300
Revisiting the type species of the genus Homidia (Collembola, Entomobryidae) https://zookeys.pensoft.net/article/109104/ ZooKeys 1176: 1-11

DOI: 10.3897/zookeys.1176.109104

Authors: Guo-Qiang Zhang, Yu-Xin Zhao, Feng Zhang

Abstract: Homidia cingula Börner, 1906, the type species of the genus Homidia Börner, 1906, is widespread from India to Southeast Asia, but its detailed morphological characteristics have not yet been described. We examined the morphology of specimens of H. cingula from Indonesia and southwestern China and confirmed their conspecific status by comparing their DNA barcoding sequences. We also compared the morphology of H. cingula with other two closely related species, confirming the valid species status of H. subcingula Denis, 1948. Our study provides new taxonomic and molecular data for the genus Homidia.

HTML

XML

PDF

]]>
Research Article Tue, 22 Aug 2023 18:05:41 +0300
Unravelling the diversity of the genus Afronurus Lestage, 1924 (Ephemeroptera, Heptageniidae) in Thailand https://zookeys.pensoft.net/article/105159/ ZooKeys 1176: 55-78

DOI: 10.3897/zookeys.1176.105159

Authors: Anuntaya Wongyam, Michel Sartori, Boonsatien Boonsoong

Abstract: The genus Afronurus in Thailand is investigated using an integrative approach (morphology based, ootaxonomy and molecular data) for species delimitation. A total of four species of Afronurus was identified; A. cervina (Braasch & Soldán, 1984), A. gilliesiana (Braasch, 1990), A. rainulfiana (Braasch, 1990), and A. rubromaculata (You et al., 1981). The subimago of A. gilliesiana is described for the first time based on reared specimens. The egg structure of all four species is also described for the first time. Morphological and molecular data strongly support their species delimitation. The egg chorionic structure of the genus Afronurus, together with other morphological characters, is useful for species identification. A key to mature nymphs of the known species is provided.

HTML

XML

PDF

]]>
Research Article Tue, 22 Aug 2023 15:51:10 +0300
Phylogenetic placement of eight poorly known spiders of Microdipoena (Araneae, Mysmenidae), with descriptions of five new species https://zookeys.pensoft.net/article/90920/ ZooKeys 1175: 333-373

DOI: 10.3897/zookeys.1175.90920

Authors: Qiuqiu Zhang, Yucheng Lin

Abstract: Ten species of the spider genus Microdipoena Banks, 1895 are reported from China, Laos, Indonesia, Georgia, and Seychelles. DNA sequences of the eight species are obtained to confirm their correct identification. The molecular phylogenetic analysis based on five gene fragments (16S, 18S, 28S, COI, and H3) were used to test the relationships and taxonomic placements of eight Microdipoena species, of which five species are documented as new to science: i.e., M. huisun sp. nov. (♀, China), M. lisu sp. nov. (♀, China), M. shenyang sp. nov. (♂♀, China), M. thatitou sp. nov. (♀, Laos), and M. zhulin sp. nov. (♂♀, China). Five known species are redescribed: M. elsae Saaristo, 1978 (♂♀, Seychelles), M. gongi (Yin, Peng & Bao, 2004) (♂♀, China), M. menglunensis (Lin & Li, 2008) (♂♀, China), M. jobi (Kraus, 1967) (♂♀, Georgia), and M. yinae (Lin & Li, 2013) (♂♀, China). All but M. menglunensis are diagnosed and illustrated. The family Mysmenidae is also the first recorded from Laos and Georgia.

HTML

XML

PDF

]]>
Research Article Mon, 21 Aug 2023 11:01:58 +0300
Integrative taxonomic revision of the genera Nesticella and Howaia in Japan with the description of five new species (Araneae, Nesticidae, Nesticellini) https://zookeys.pensoft.net/article/101251/ ZooKeys 1174: 219-272

DOI: 10.3897/zookeys.1174.101251

Authors: Francesco Ballarin, Katsuyuki Eguchi

Abstract: The Japanese species of the genera Nesticella Lehtinen & Saaristo, 1980 and Howaia Lehtinen & Saaristo, 1980 (Araneae, Nesticidae, Nesticellini) are revised using an integrative taxonomic approach. Their morphology, phylogenetic position within the genera, assignment to species groups, and distribution in mainland Japan and the Ryukyu islands are discussed herein. A phylogenetic and species delimitation analysis was conducted to confirm the boundaries between the putative species that were initially discriminated based on external and genital morphology. As a result of the present study, six species of Nesticella and three species of Howaia are proposed for the fauna of Japan based on the combined results of morphology and molecular analyses. Male and female of the previously known species H. mogera (Yaginuma, 1972), N. brevipes (Yaginuma, 1970), and N. okinawaensis (Yaginuma, 1979) are redescribed and illustrated using type specimens or specimens collected at the type locality. Nesticella terrestris (Yaginuma, 1970) is resurrected as a valid species and distinguished from the closely related N. brevipes based on morphological and molecular evidence. The male of N. terrestris is described for the first time. We herein describe three new species of Nesticella and two new species of Howaia from different islands in the Ryukyu Archipelago, southwest Japan: N. insulana sp. nov. (♂, ♀) from Yonaguni-jima Island, N. occulta sp. nov. (♀) from Ishigaki-jima Island, N. silvicola sp. nov. (♂, ♀) from Yakushima Island, H. alba sp. nov. (♂, ♀) from Miyako-jima Island and H. subterranea sp. nov. (♀) from Okinoerabu-jima Island. Nesticella occulta sp. nov., H. alba sp. nov. and H. subterranea sp. nov. dwell exclusively in caves and show extensive morphological adaptation to subterranean life.

HTML

XML

PDF

]]>
Research Article Fri, 11 Aug 2023 14:17:09 +0300
The larval, pupal and mitogenomic characteristics of Agrilus adelphinus Kerremans, 1895 (Coleoptera, Buprestidae) from China https://zookeys.pensoft.net/article/105479/ ZooKeys 1174: 15-33

DOI: 10.3897/zookeys.1174.105479

Authors: Xuyan Huang, Yujie Gan, Lei Wang, Yanying Xu, Zhonghua Wei, Aimin Shi

Abstract: In this study, the larva and pupa of Agrilus adelphinus are described and illustrated. DNA barcoding (COI gene) was used to associate the larval and pupal stages with adults based on the maximum-likelihood method. In the resulting phylogenetic tree, species from the same species-group were found to be clustered on a branch with high support value. To better understand A. adelphinus, the complete mitochondrial genome of this species was also sequenced and annotated. Comparing this genome to the known mitogenomes of Agrilus species, the newly sequenced genome is shorter, with 15,732 bp. However, its whole mitogenome composition and gene orientation were consistent with that of most species of Buprestidae. In the mitogenome of A. adelphinus, the ATGATAG sequence was observed between ATP8 and ATP6, which is ATGATAA in other insect mitogenomes. Leu2, Phe, Ile, Gly, and Ser2 were the five most frequently encoded amino acids. The results further prove that DNA barcoding can remove the limitation of traditional taxonomy which cannot identify to species all developmental stages. This study also provides valuable molecular and morphological data for species identification and phylogenetic analyses of the genus Agrilus.

HTML

XML

PDF

]]>
Research Article Tue, 8 Aug 2023 15:27:07 +0300
Description of a new Promastobranchus species (Annelida, Capitellidae) from Chinese coasts, with molecular evidence for intraspecific variation in the number of thoracic chaetigers https://zookeys.pensoft.net/article/106624/ ZooKeys 1174: 1-14

DOI: 10.3897/zookeys.1174.106624

Authors: Jun-Hui Lin, María E. García-Garza, Jian-Feng Mou, He-Shan Lin

Abstract: Promastobranchus Gallardo, 1968 is a small genus in the polychaete family Capitellidae, and the available records are largely reported from the Indo-West Pacific region. Although Gallardo (1968) and Green (2002) noted that Promastobranchus species had intraspecific variation in the number of thoracic chaetigers when they described the two previously known species, this variation has not been corroborated using molecular evidence. In this study, a new Promastobranchus species, Promastobranchus variabilis sp. nov., is described based on 29 specimens collected from the Beibu Gulf, South China Sea. The new species is mainly characterized by having a tessellated epithelium in the anterior thorax, nine teeth in three rows above the main fang in the abdominal hooks, four pairs of genital pores located on the intersegmental grooves between chaetigers 9 and 13, and its unique methyl green staining pattern. Comparisons of multiple gene markers (16S, 18S, 28S, and H3) revealed no genetic divergence (K2P < 0.003) among these type specimens with 9–13 thoracic chaetigers. In other words, the new species exhibited morphological variability in the number of thoracic chaetigers during ontogeny, and this character was unsuitable to differentiate Promastobranchus species as the ranges overlap among Promastobranchus species. This is the third Promastobranchus species known in the world, and it is now recorded along the Fujian coast.

HTML

XML

PDF

]]>
Research Article Tue, 8 Aug 2023 15:26:13 +0300
Podarkeopsis chinensis sp. nov. (Annelida, Hesionidae) from southeastern China https://zookeys.pensoft.net/article/106112/ ZooKeys 1173: 339-355

DOI: 10.3897/zookeys.1173.106112

Authors: Shan Tong, Deyuan Yang, Jian-Wen Qiu, Caihuan Ke, Zhi Wang

Abstract: Podarkeopsis chinensis sp. nov. (Annelida, Hesionidae) is described based on specimens collected from the coast of southeast China. It is the first Podarkeopsis species described from the Indo-Pacific, although there are already nine valid Podarkeopsis species known from other parts of the world. This new species can be distinguished from the other Podarkeopsis species in having a palpostyle as long as the palpophore and double aciculae in both notopodia and neuropodia, and in bearing bifid furcate chaetae which have a smooth base on the shorter tine. A phylogenetic analysis based on the concatenated sequences of five gene fragments (COI, 16S rRNA, 18S rRNA, 28S rRNA, and histone H3) from 18 specimens of P. chinensis sp. nov. showed that they formed a monophyletic clade that is sister to P. levifuscina. K2P genetic distances indicated that the four gene fragments (COI, 16S rRNA, 18S rRNA, and 28S rRNA) of P. chinensis sp. nov. diverged from the corresponding sequences of the closest related species of Podarkeopsis in GenBank and BOLD Systems by 21.1–27.5%, 20.3–23.1%, 0.1–0.2%, and 2.1–3.2%. An identification key is provided for species in the genus Podarkeopsis.

HTML

XML

PDF

]]>
Research Article Mon, 7 Aug 2023 15:20:04 +0300
A review of the spider genus Sinoalaria (Araneae, Theridiosomatidae), with the descriptions of four new species and two new combinations https://zookeys.pensoft.net/article/105123/ ZooKeys 1173: 307-338

DOI: 10.3897/zookeys.1173.105123

Authors: Jianshuang Zhang, Chengcheng Feng, Hao Yu, Yucheng Lin

Abstract: The spider genus Sinoalaria Zhao & Li, 2014 is redefined and reviewed. A total of ten species are studied, including four new species: S. chi Yu & Lin, sp. nov. (♂♀), S. shenhei Yu & Lin, sp. nov. (♀), S. shuidi Yu & Lin, sp. nov. (♀), S. xiaotu Yu & Lin, sp. nov. (♂♀). Two new combinations are proposed: Sinoalaria nitida (Zhao & Li, 2012), comb. nov. and S. prolata (Zhao & Li, 2012), comb. nov., both transferred from Karstia Chen, 2010. The material of six known species were re-examined and photographed, including the type species, S. chengguanensis (Zhao & Li, 2012). A key is provided for all species of the genus, as well as diagnoses, illustrations, and a distribution map.

HTML

XML

PDF

]]>
Research Article Mon, 7 Aug 2023 15:09:32 +0300
Unveiling the identity of Diaurora Cockerell, 1903 (Bivalvia, Unionidae): morphology, molecular phylogenetics, and the description of a new species https://zookeys.pensoft.net/article/106148/ ZooKeys 1173: 131-144

DOI: 10.3897/zookeys.1173.106148

Authors: Zhong-Guang Chen, Yu-Ting Dai, Shan Ouyang, Xiao-Chen Huang, Xiao-Ping Wu

Abstract: The monotypic freshwater mussel genus Diaurora Cockerell, 1903 has long been enigmatic due to its rarity and morphological confusion with Acuticosta. In this study, we comprehensively redescribed Diaurora aurorea (Heude, 1883) through a detailed analysis of shell morphology and molecular phylogenetics of recently collected specimens. Moreover, a new species, Diaurora laeve sp. nov., was identified from the Fuyishui River, a tributary of the Zishui River in Shaoyang County, Shaoyang City, Hunan Province, China. Molecular phylogenetic analyses showed that D. aurorea and D. laeve sp. nov. were reciprocally monophyletic and formed a clade as sister to Schistodesmus. Our study underscores the necessity of further exploring the diversity of freshwater mussels in understudied small tributaries throughout China.

HTML

XML

PDF

]]>
Research Article Thu, 3 Aug 2023 09:15:09 +0300
A new species of the genus Dentatissus Chen, Zhang & Chang (Hemiptera, Fulgoroidea, Issidae) from the Korean Peninsula, with a key to the genus https://zookeys.pensoft.net/article/106206/ ZooKeys 1173: 61-69

DOI: 10.3897/zookeys.1173.106206

Authors: Jaekook Park, Sunghoon Jung

Abstract: A new species of the family Issidae (Hemiptera, Auchenorrhyncha, Fulgoroidea), Dentatissus longispinosus sp. nov., is described from the Korean Peninsula. Morphological information is presented with photographs based on male and female specimens. A key to species of the genus Dentatissus is also provided.

HTML

XML

PDF

]]>
Research Article Tue, 1 Aug 2023 10:59:42 +0300
First record of the genus Pseudaeginella Mayer, 1890 (Crustacea, Amphipoda, Caprellidae) with a new species from Korean waters https://zookeys.pensoft.net/article/105901/ ZooKeys 1169: 163-174

DOI: 10.3897/zookeys.1169.105901

Authors: So-Yeon Shin, Chang-Mok Lee, Jun-Haeng Heo, Young-Hyo Kim

Abstract: A new species of the genus Pseudaeginella Mayer, 1890 belonging to the family Caprellidae Leach, 1814 was collected from the South Sea in Korea. Pseudaeginella carinaspinosa sp. nov. is morphologically similar to related congeners belonging to the genera Paradeutella Mayer, 1890 and Pseudaeginella, in having dorsal projections on pereonites, triarticulate mandibular palp, small or absent molar, and uniarticulate pereopods 3 and 4. However, this new species is distinguished from its congeners by the position and size of dorsal projection. This is the first record of Pseudaeginella from the Northwest Pacific region, including Korea, and a key to species of the genus Pseudaeginella is also provided.

HTML

XML

PDF

]]>
Research Article Thu, 13 Jul 2023 19:49:58 +0300
Common but ignored: a new species of Cyrtodactylus (Chordata, Reptilia, Squamata, Gekkonidae) from lowland Sumatra Barat, Indonesia https://zookeys.pensoft.net/article/98681/ ZooKeys 1169: 47-64

DOI: 10.3897/zookeys.1169.98681

Authors: Fitra Arya Dwi Nugraha, Yuni Ahda, Djong Hon Tjong, Nia Kurniawan, Awal Riyanto, Muhammad Alif Fauzi, Si-Min Lin

Abstract: The lowland region of Sumatra Barat has received little attention in previous biodiversity studies. Past studies have mainly focused on highland habitat and conservation areas. However, many populations of Cyrtodactylus in the lowland habitats of Sumatra Barat were not correctly identified. A phylogenetic tree based on the NADH dehydrogenase subunit 2 (ND2) gene showed that the lowland Sumatran population is the sister group of the Malaysian lowland species, C. semenanjungensis, together nesting within the agamensis group. The genetic divergence within the Sumatra Barat population is 0–4.2% and 18.3–20% to C. semenanjungensis. Further examination of morphological characters revealed that they differed from the sister clade and other Sumatran Cyrtodactylus members by a unique combination of characters such as absence of tubercle on brachium, presence of tubercle on ventrolateral fold, 32–41 paravertebral tubercles, 38–46 ventral scales, enlarged femoral scales, presence of precloacofemoral pores and 22–23 subdigital lamellae under fourth toe. Based on the morphological and molecular evidence, the lowland Sumatran population is herein described as a new species, increasing the number of species in Sumatra to seven. More comprehensive and intensive sampling efforts would most likely yield further discoveries in the group of Sumatran Cyrtodactylus in the near future.

HTML

XML

PDF

]]>
Research Article Thu, 6 Jul 2023 16:43:52 +0300
A new species of the Cyrtodactylus quadrivirgatus complex (Chordata, Reptilia, Squamata, Gekkonidae) from Sumatra Barat, Indonesia https://zookeys.pensoft.net/article/98724/ ZooKeys 1168: 367-386

DOI: 10.3897/zookeys.1168.98724

Authors: Yuni Ahda, Fitra Arya Dwi Nugraha, Djong Hon Tjong, Nia Kurniawan, Yunico Amardi, Muhammad Alif Fauzi, Si-Min Lin

Abstract: Among the six species of Cyrtodactylus occurring in Sumatra, two species were described based on non-Sumatran type series, C. consobrinus and C. quadrivirgatus. The latter species was described originally from Thailand thus the wider distribution in Sumatra should be clarified taxonomically. Cyrtodactylus quadrivirgatus from Sumatra Barat was examined using both morphology and the Natrium Dehydrogenase Subunit 2 (ND2) gene to clarify its taxonomic status and phylogenetic placement. It was found that these specimens form a sister clade to all other species of the sworderi group from Peninsular Malaysia and the genetic distance ranges from 20–24.3%. This subset is herein described as a new species. The new species is readily distinguished from C. quadrivirgatus and other Sumatran species by a combination of characters: small size SVL 37.5–53.78 mm; longitudinal rows of dorsal tubercles 16–19; paravertebral tubercles 31–41; ventral scales 32–43; 24–49 enlarged precloacal and femoral scales; precloacal pores rarely present; no precloacal depression; two postcloacal tubercles on each side; 14–19 subdigital lamellae on forth toe; 9–15 supralabial scales; 9–12 infralabial scales; three or four internasal scales; and 3–6 gular scales that border the first pair of postmental scales. This work underscores the importance of clarifying widely distributed species for taxonomic validation.

HTML

XML

PDF

]]>
Research Article Tue, 4 Jul 2023 09:53:36 +0300
A review of the Strongylophthalmyia coarctata subgroup (Diptera, Brachycera, Strongylophthalmyiidae) from China, with the descriptions of three new species https://zookeys.pensoft.net/article/104699/ ZooKeys 1168: 329-353

DOI: 10.3897/zookeys.1168.104699

Authors: Jiale Zhou, Neal L. Evenhuis, Ding Yang

Abstract: The species belonging to the Strongylophthalmyia coarctata subgroup of the S. punctata group (Diptera: Brachycera: Strongylophthalmyiidae) from China are reviewed. Six species are recognized, including three new species: S. corniculata sp. nov., S. flagellicornis sp. nov., and S. tangwangana sp. nov. Strongylophthalmyia narwhal Evenhuis, 2020 and S. raricornis Shatalkin, 1981 are recorded from China for the first time, and S. raricornis is also recorded from South Korea for the first time. An identification key to the Asian species of the S. coarctata subgroup is provided.

HTML

XML

PDF

]]>
Research Article Tue, 4 Jul 2023 09:49:38 +0300
A new, widespread genus of Baetidae from South Asia (Insecta, Ephemeroptera) https://zookeys.pensoft.net/article/104844/ ZooKeys 1168: 231-266

DOI: 10.3897/zookeys.1168.104844

Authors: Thomas Kaltenbach, Nikita J. Kluge, Jean-Luc Gattolliat

Abstract: Material collected on different islands across South Asia revealed a new genus of Baetidae with a widespread distribution, Arcobaetis gen. nov. The larvae present important similarities with Nigrobaetis, but have paraglossae dorsally with an arc of long, spine-like setae in distal area; long, slightly feathered setae between prostheca and mola of both mandibles; and very slender legs with row of short setae at dorsal margin of femur. The male imago has an extraordinarily small 3rd (apical) segment of gonostylus, which is much narrower than the apex of the 2nd segment. The new genus includes five species: A. sumbawensis sp. nov. is described from Sumbawa (Indonesia) based on larvae, A. sumatrensis sp. nov. from Sumatra (Indonesia) based on larvae, A. bornensis sp. nov. from Borneo (Brunei) based on larvae, and A. sripadai sp. nov. (type species) is described from Sri Lanka based on a reared male imago with its larval and subimaginal exuviae; A. gracilentus (Chang & Yang, 1994), comb. nov. from Taiwan, formerly described in Margobaetis Kang & Yang, 1994, a subgenus of Baetis Leach, 1815, and subsequently transferred to the genus Nigrobaetis Kazlauskas (in Novikova & Kluge), 1987, is transferred to the new genus. A key to the larvae of all species is provided. Morphological similarities and the relationship of the new genus to other genera of Baetidae are discussed.

HTML

XML

PDF

]]>
Research Article Mon, 3 Jul 2023 09:43:49 +0300
Uneven species occurrence and richness of lowland snakes (Serpentes, Squamata) in Terengganu, Peninsular Malaysia, with new locality records https://zookeys.pensoft.net/article/95833/ ZooKeys 1168: 11-39

DOI: 10.3897/zookeys.1168.95833

Authors: Muhamad Fatihah Syafiq, Baizul Hafsyam Badli-Sham, Larry Lee Grismer, Amirrudin B. Ahmad

Abstract: This study documents information on the composition, diversity, richness, and temporal occurrence of snakes at Sekayu’s lowland forest (SLF), Terengganu, Peninsular Malaysia for the first time. The snakes recorded within the SLF were sampled opportunistically from 2013 to 2019, employing the Visual Encounter Survey method (VES) and L-shape pitfall traps with drift fences. Forty-six snake species from 37 genera belonging to the nine families were recorded, of which 11 were new records to Terengganu. Individual-based rarefaction and extrapolation curves were not reaching asymptote, indicating that additional species can be recorded at the study area. Non-parametric species richness estimators estimated and produced a range between 51 and 57 species. ACE was the best estimator based on the quantitative evaluation. All species showed some variations of occurrence patterns across months. Fourteen species were only encountered once across the sampling years, and interestingly 11 of them were only detected during the rainy season (late October to January). In general, the number of species richness, abundance, and rare species were high during this season. Species richness of snakes is high at SLF but sampling effort should be intensified, especially during these rainy months, to obtain a robust estimated snake species richness in SLF. Terengganu harbor considerably high species richness of snakes with a total of 71 species to date (excluding marine snakes), but snake diversity is still underestimated as only a few localities were surveyed in the past years, primarily at the northern part. Future surveys should be commenced at the central and southern parts of Terengganu to complement the current investigation.

HTML

XML

PDF

]]>
Research Article Mon, 26 Jun 2023 20:12:58 +0300
A new species of Hemiphyllodactylus (Squamata, Gekkonidae) from Ha Giang Province, Vietnam https://zookeys.pensoft.net/article/103713/ ZooKeys 1167: 353-382

DOI: 10.3897/zookeys.1167.103713

Authors: Vinh Quang Luu, Thuong Huyen Nguyen, Quyen Hanh Do, Cuong The Pham, Tuoi Thi Hoang, Truong Quang Nguyen, Minh Duc Le, Thomas Ziegler, Jesse L. Grismer, L. Lee Grismer

Abstract: An integrative analysis recovered a new species of the Hemiphyllodactylus typus group from a karst formation in Lung Cu Commune, Dong Van District, Ha Giang Province, northeastern Vietnam. Hemiphyllodactylus lungcuensis sp. nov. is embedded within clade 6 of the typus group, bearing an uncorrected pairwise sequence divergence of 4.6–20.2% from all other species based on a 1,038 base pair segment of the mitochondrial NADH dehydrogenase subunit 2 gene (ND2). It is diagnosable from other species in clade 6 by statistically significant mean differences in normalized morphometric, meristic, and categorical characters. A multiple factor analysis using the three aforementioned character types recovered its unique, non-overlapping placement in morphospace as statistically significantly different from that of all other species in clade 6. The description of this new Hemiphyllodactylus species contributes to a growing body of literature underscoring the high degree of herpetological diversity and endemism in karst landscapes in Vietnam as well as in the genus Hemiphyllodactylus.

HTML

XML

PDF

]]>
Research Article Thu, 22 Jun 2023 09:59:41 +0300
Mealybugs (Hemiptera, Coccomorpha, Pseudococcidae) on parasitic plants (Loranthaceae) in Indonesia with description of a new species and a new country record https://zookeys.pensoft.net/article/106012/ ZooKeys 1167: 199-210

DOI: 10.3897/zookeys.1167.106012

Authors: Agustin Zarkani, Ariffatchur Fauzi, Dwinardi Apriyanto, Mehmet Bora Kaydan

Abstract: Parasitic plants have been known to be attacked by insect pests since ancient times. However, little is known about the mealybug (Hemiptera, Coccomorpha, Pseudococcidae) fauna associated with them. A series of surveys of mealybugs found on Loranthaceae, a semi-parasitic plant family, was conducted in several places in Bengkulu Province, southern Sumatra, Indonesia. In the study, 55 mealybug specimens were collected, consisting of eight species belonging to five genera, namely Chorizococcus McKenzie (1 species), Dysmicoccus Ferris (2 species), Ferrisia Fullaway (1 species), Planococcus Ferris (3 species) and Pseudococcus Westwood (1 species). Chorizococcus ozeri Zarkani & Kaydan, sp. nov. is new to science, whilst Planococcus bagmaticus Williams represents the first record in Indonesia. In addition, the mealybugs Dysmicoccus lepelleyi (Betrem), Dysmicoccus zeynepae Zarkani & Kaydan, Ferrisia dasylirii (Cockerell), Planococcus lilacinus (Cockerell) and Pseudococcus jackbeardsleyi Gimpel & Miller are newly recorded from plants of the family Loranthaceae. Figures and illustrations of mealybug species with a taxonomic key to Asian Chorizococcus and a new country record based on morphological characters are also updated.

HTML

XML

PDF

]]>
Research Article Thu, 15 Jun 2023 10:26:13 +0300
New species of Nigrobaetis from Southeast Asia (Ephemeroptera, Baetidae) https://zookeys.pensoft.net/article/102941/ ZooKeys 1166: 175-234

DOI: 10.3897/zookeys.1166.102941

Authors: Thomas Kaltenbach, Jean-Luc Gattolliat

Abstract: Based on larvae collected in the Philippines, Borneo (Kalimantan), Sumba, and Sumatra, the presence of the genus Nigrobaetis in the Philippines and Indonesia is reported for the first time. Six new species are described and illustrated, two from the Philippines and four from Indonesia. A larval key to all Nigrobaetis species of the Philippines, Indonesia and neighbouring continental Southeast Asia is provided, morphological differences to the species of Taiwan are discussed as well. The eggs of three new species are described, and the morphology of the eggs of Nigrobaetis is briefly discussed.

HTML

XML

PDF

]]>
Research Article Fri, 9 Jun 2023 16:44:13 +0300
Two new species of the genus Samarangopus and the first record of Eurypauropus japonicus (Arthropoda, Myriapoda, Pauropoda, Eurypauropodidae) from China https://zookeys.pensoft.net/article/102936/ ZooKeys 1165: 137-154

DOI: 10.3897/zookeys.1165.102936

Authors: Yan Gao, Yun Bu

Abstract: Two new species, Samarangopus testudineus sp. nov. from Hunan, South China and S. rotundifolius sp. nov. from Zhejiang, East China, are described and illustrated. Samarangopus testudineus sp. nov. is characterized by unusual testudinal patterns on the dorsal side of the body and well-differentiated marginal protuberances on tergites. Samarangopus rotundifolius sp. nov. features large, round, leaf-shaped marginal protuberances and small, candle-like dorsal protuberances on tergites. Both of these species are compared to similar species in detail. In addition, Eurypauropus japonicus Hagino & Scheller, 1985 is newly recorded from China.

HTML

XML

PDF

]]>
Research Article Thu, 1 Jun 2023 10:27:07 +0300
A new species of the Cyrtodactylus brevipalmatus group (Squamata, Gekkonidae) from Tak Province, northwestern Thailand https://zookeys.pensoft.net/article/101263/ ZooKeys 1164: 63-88

DOI: 10.3897/zookeys.1164.101263

Authors: Siriwadee Chomdej, Chatmongkon Suwannapoom, Waranee Pradit, Apichaya Phupanbai, L. Lee Grismer

Abstract: An integrative taxonomic analysis was used to delimit and diagnose a new species of the Cyrtodactylus brevipalmatus group from Tak Province in western Thailand. Although Bayesian phylogenetic analyses place C. denticulatus sp. nov. within the brevipalmatus group, the new species is neither nested within nor is it the sister species of any other species in the brevipalmatus group. Furthermore, based on the mitochondrial NADH dehydrogenase subunit 2 gene (ND2) and adjacent tRNAs, it bears an uncorrected pairwise sequence divergence of 7.87–21.94% from all other species in the brevipalmatus group. Cyrtodactylus denticulatus sp. nov. is differetiated from all other species in the brevipalmatus group by having a number of unique charateristics such as denticulate ventrolateral body folds and ventrolateral subcaudal ridges, characters not seen in any other species of the group (n = 51 individuals). Additionally, based on a multiple factor anlaysis, C. denticulatus sp. nov. does not overlap with any other species in multivariate space. The discovery of C. denticulatus sp. nov. underscores the unrealized diversity of upland ecosystems across Thailand and the urgent need for increased exploration and conservation of these unique imperiled montane refugia, especially in this era of climate change.

HTML

XML

PDF

]]>
Research Article Mon, 29 May 2023 18:26:00 +0300
Review of the pill millipede genus Hyperglomeris Silvestri, 1917 (Diplopoda, Glomerida, Glomeridae) with description of two new species from Laos https://zookeys.pensoft.net/article/103950/ ZooKeys 1163: 177-198

DOI: 10.3897/zookeys.1163.103950

Authors: Natdanai Likhitrakarn, Ruttapon Srisonchai, Warut Siriwut, Parin Jirapatrasilp, Ekgachai Jeratthitikul, Somsak Panha, Chirasak Sutcharit

Abstract: The pill millipede genus Hyperglomeris Silvestri, 1917 is reported from Laos for the first time. Two new species, namely H. bicaudata Likhitrakarn, sp. nov. and H. inkhavilayi Likhitrakarn, sp. nov., from Houaphanh and Khammouane provinces, northern Laos, are described and illustrated based on morphological characters and molecular analyses. Sequences of COI gene were used as DNA barcoding markers, and successfully supported the accurate identification of other Glomeridae species. Interspecific divergence of the COI uncorrected p-distance between these new species and other Hyperglomeris species ranged from 7.84–13.07%, while the intraspecific divergence was 0.45% in H. inkhavilayi sp. nov. and 5.3% in H. bicaudata sp. nov. The updated status of Hyperglomeris, a map of its distribution, and identification keys for all species are given.

HTML

XML

PDF

]]>
Review Article Fri, 26 May 2023 17:34:15 +0300
Two new species of Dixonius from Vietnam and Laos with a discussion of the taxonomy of Dixonius (Squamata, Gekkonidae) https://zookeys.pensoft.net/article/101230/ ZooKeys 1163: 143-176

DOI: 10.3897/zookeys.1163.101230

Authors: Vinh Quang Luu, Thuong Huyen Nguyen, Minh Duc Le, Jesse L. Grismer, Hong Bich Ha, Saly Sitthivong, Tuoi Thi Hoang, L. Lee Grismer

Abstract: Integrated analyses using maximum likelihood (ML), Bayesian inference (BI), principal component analysis (PCA), discriminate analysis of principal components (DAPC), multiple factor analysis (MFA), and analysis of variance (ANOVA) recovered two new diagnosable species of gekkonid lizards in the genus Dixonius, one from the Central Highlands, Gia Lai Province, Vietnam and another from the Vientiane Province, Laos. Phylogenetic analyses based on the mitochondrial NADH dehydrogenase subunit 2 gene (ND2) and adjacent tRNAs showed that Dixonius gialaiensis sp. nov. is the sister species of D. minhlei from Dong Nai Province, Vietnam and is nested within a clade that also includes the sister species D. siamensis and D. somchanhae. Dixonius muangfuangensis sp. nov. is the sister species to D. lao from Khammouane Province, Laos and is embedded in a clade with D. vietnamensis, D. taoi, and undescribed species from Thailand. Multivariate (PCA, DAPC, and MFA) and univariate (ANOVA) analyses using combinations of 15 meristic (scale counts), six morphometric (measurements), and five categorical (color pattern and morphology) characters from 44 specimens encompassing all eight species of Dixonius from Vietnam and Laos clearly illustrate Dixonius gialaiensis sp. nov. and Dixonius muangfuangensis sp. nov. are statistically different and discretely diagnosable from all closely related species of Dixonius. These integrative analyses also highlight additional taxonomic issues that remain unresolved within Dixonius and the need for additional studies. The discovery of these new species further emphasizes the underappreciated herpetological diversity of the genus Dixonius and illustrates the continued need for field work in these regions.

HTML

XML

PDF

]]>
Research Article Tue, 23 May 2023 20:33:40 +0300
On four new species of the orb-weaver spider genus Araneus Clerck, 1757 (Araneae, Araneidae) from southern China https://zookeys.pensoft.net/article/101594/ ZooKeys 1160: 169-190

DOI: 10.3897/zookeys.1160.101594

Authors: Yibei Wu, Cheng Wang, Nanfei Wu, Mengfei Zhang, Xiaoqi Mi

Abstract: Four new species of Araneus Clerck, 1757 from southern China are described: A. mayanghe Mi & Wang, sp. nov. (♂♀) from Guizhou, A. shiwandashan Mi & Wang, sp. nov. (♂♀) from Guangxi, and A. zhoui Mi & Wang, sp. nov. (♂♀) from Hainan are assigned to the A. sturmi group, and A. fenzhi Mi & Wang, sp. nov. (♂♀) from Hunan, Guizhou and Jiangxi is not assigned to any species group. A new combination is also proposed: Aoaraneus octumaculalus (Han & Zhu, 2010) comb. nov.

HTML

XML

PDF

]]>
Research Article Tue, 9 May 2023 15:18:06 +0300
Two new Palaearctic species of Xynobius Foerster (Hymenoptera, Braconidae, Opiinae) https://zookeys.pensoft.net/article/103417/ ZooKeys 1160: 61-74

DOI: 10.3897/zookeys.1160.103417

Authors: Yunjong Han, Cornelis van Achterberg, Heung-Sik Lee, Hyojoong Kim

Abstract: Two new and very similar species of the genus Xynobius Foerster, 1863 are described and illustrated, X. subparallelus Han & van Achterberg, sp. nov. from Japan (Honshu) and X. setosiscutum van Achterberg, sp. nov. from Norway. Three species are newly reported from Norway: Xynobius aciculatus (Thomson, 1895), X. comatus (Wesmael, 1835), and X. polyzonius (Wesmael, 1835). X. polyzonius (Wesmael, 1835) and X. sapporanus (Fischer, 1963) are new combinations. Identification keys to the Xynobius species known from Norway and Japan are added.

HTML

XML

PDF

]]>
Research Article Wed, 3 May 2023 10:36:28 +0300
A review of Microdytes J. Balfour-Browne, 1946 from Thailand, Laos, and Cambodia with descriptions of five new species and new records (Coleoptera, Dytiscidae) https://zookeys.pensoft.net/article/99218/ ZooKeys 1159: 87-119

DOI: 10.3897/zookeys.1159.99218

Authors: Ryohei Okada, Weeyawat Jaitrong, Günther Wewalka

Abstract: The diving beetle genus Microdytes J. Balfour-Browne, 1946 in Thailand, Laos, and Cambodia is reviewed, and five new species are described: Microdytes eliasi Wewalka & Okada, sp. nov. (Thailand, Cambodia), M. jeenthongi Okada & Wewalka, sp. nov. (Thailand), M. maximiliani Wewalka & Okada, sp. nov. (Laos, China), M. sekaensis Okada & Wewalka, sp. nov. (Thailand, Laos), M. ubonensis Okada & Wewalka, sp. nov. (Thailand, Laos). Two species are the first country records: M. balkei Wewalka, 1997 (Laos, Cambodia) and M. wewalkai Bian & Ji, 2009 (Laos). For 12 and 8 species, the first provincial records from Thailand and Laos, respectively, are given. A checklist, a key to the 25 known Microdytes species from these countries, and habitus images and illustrations of diagnostic characters are provided. Distribution maps of the recorded species are presented, and species distribution patterns are also briefly discussed.

HTML

XML

PDF

]]>
Research Article Tue, 25 Apr 2023 22:02:31 +0300
Description of a new nematode species, Chromadorina communis sp. nov. (Nematoda, Chromadoridae), from Changdao Island, China and phylogenetic analysis of Chromadorida based on small subunit rRNA gene sequences https://zookeys.pensoft.net/article/100908/ ZooKeys 1159: 121-131

DOI: 10.3897/zookeys.1159.100908

Authors: Wen Guo, Mengna Wang, Haotian Li, Chunming Wang

Abstract: Chromadorina communis sp. nov. is described from Changdao Island at the confluence of the Yellow and the Bohai seas. The new species is characterized by its medium-sized body; finely striated cuticle with homogeneous punctations; absence of ocelli; buccal cavity with three equal-sized, solid teeth; four cephalic setae; oval amphidial fovea which is positioned between cephalic setae; curved spicules with tapered distal ends; simple, boat-shaped gubernaculums; five or six cup-shaped precloacal supplements; and conical tail with a very short spinneret. A phylogenetic analysis of small subunit rRNA gene sequences using maximum-likelihood and Bayesin inference confirmed the taxonomic position of Chromadorina communis sp. nov. within Chromadorinae. Tree topology in Chromadorida shows six morphological families clustered into a monophyletic clade and verifies the taxonomic position of the family Neotonchidae based on morphological and molecular analysis.

HTML

XML

PDF

]]>
Research Article Tue, 25 Apr 2023 13:42:22 +0300
Food preference strategy of four sympatric rodents in a temperate forest in northeast China https://zookeys.pensoft.net/article/96886/ ZooKeys 1158: 163-177

DOI: 10.3897/zookeys.1158.96886

Authors: Dianwei Li, Chengzhi Zhang, Yuwei Cao, Ming Gao, Shiqi Chang, Menghao Xu, Zhimin Jin, Hongwei Ni

Abstract: Rodents are well known as both seed predators and dispersers of various plant species in forest ecosystems, and they play an important role in the regeneration of vegetation. Thus, the research on seed selection and vegetation regeneration by sympatric rodents is an interesting topic. To understand the characteristics of preferences of rodents for different seeds, a semi-natural enclosure experiment was performed with four rodent species (Apodemus peninsulae, Apodemus agrarius, Tscherskia triton, and Clethrionomys rufocanus) and the seeds of seven plant species (Pinus koraiensis, Corylus mandshurica, Quercus mongolica, Juglans mandshurica, Armeniaca sibirica, Prunus salicina, and Cerasus tomentosa) to investigate the differentiation in niches and patterns of resource utilization of sympatric rodents. The results showed that all the rodents had consumed many seeds of Pi. koraiensis, Co. mandshurica, and Q. mongolica but differed significantly in how they selected the different seeds. The rate of utilization (Ri) of Pi. koraiensis, Co. mandshurica, and Q. mongolica exhibited the highest values. The Ei values indicated that the rodents tested exhibited differences in their priorities used to select the seeds from different plant species. All four species of rodents exhibited obvious preferences for certain seeds. Korean field mice preferentially consumed the seeds of Q. mongolica, Co. mandshurica, and Pi. koraiensis. Striped field mice favor the seeds of Co. mandshurica, Q. mongolica, P. koraiensis, and Nanking cherry. Greater long-tailed hamsters prefer to consume the seeds of Pi. koraiensis, Co. mandshurica, Q. mongolica, Pr. salicina, and Ce. tomentosa. Clethrionomys rufocanus likes to eat the seeds of Pi. koraiensis, Q. mongolica, Co. mandshurica, and Ce. tomentosa. The results supported our hypothesis that sympatric rodents overlap in food selection. However, each rodent species has a marked preference for food selection, and different rodent species differ in their food preferences. This reflects the role of distinct food niche differentiation in their coexistence.

HTML

XML

PDF

]]>
Research Article Fri, 21 Apr 2023 10:51:56 +0300
Description of two new species of Dicranomyia (Erostrata) crane fly (Diptera, Limoniidae) from Korea, with remarks on DNA barcoding and updated taxonomic key https://zookeys.pensoft.net/article/90792/ ZooKeys 1157: 193-206

DOI: 10.3897/zookeys.1157.90792

Authors: Jisoo Kim, Yeon Jae Bae

Abstract: Two new crane fly species, Dicranomyia (Erostrata) jejuensis sp. nov. and D. (E.) koreana sp. nov., from Korea are described on the basis of morphology and mitochondrial COI sequences. DNA barcode sequences for other four D. (Erostrata) species from Korea are also provided for the first time. The identification key for all known D. (Erostrata) species is presented.

HTML

XML

PDF

]]>
Research Article Tue, 11 Apr 2023 14:21:18 +0300
Description of the first species of Scutigerella (Symphyla, Scutigerellidae) from China, with mitogenomic and genetic divergence analysis https://zookeys.pensoft.net/article/99686/ ZooKeys 1157: 145-161

DOI: 10.3897/zookeys.1157.99686

Authors: Ya-Li Jin, Nerivania Nunes Godeiro, Yun Bu

Abstract: Scutigerella sinensis Jin & Bu, sp. nov. from China is described and illustrated. It is characterized by a deeply emarginated posterior margin of tergite 2, less differentiated marginal setae on all tergites, absence of seta a3 around the antennal base, and 6–8 setae on the first tergite. The complete mitochondrial genome of the new species is also analyzed and compared with the mitogenome of Scutigerella causeyae. In the reconstructed Neighbor-Joining tree based on COI gene sequences, S. sinensis sp. nov. clusters with S. causeyae, however, with big distances. The genetic divergence among S. sinensis sp. nov. and congeners, species of Hanseniella and Scutigerella, and both families of Symphyla was analyzed using COI gene sequences.

HTML

XML

PDF

]]>
Research Article Wed, 5 Apr 2023 18:01:00 +0300
First report of the Afrotropical genus Securiops Jacobus, McCafferty & Gattolliat (Ephemeroptera, Baetidae) from Southeast Asia, with description of a new species https://zookeys.pensoft.net/article/99642/ ZooKeys 1157: 127-143

DOI: 10.3897/zookeys.1157.99642

Authors: Thomas Kaltenbach, Sirikamon Phlai-ngam, Chanaporn Suttinun, Jean-Luc Gattolliat

Abstract: Recent collections in Thailand revealed the occurrence of the genus Securiops in Asia, formerly known from the Afrotropical Realm only. A new species of Securiops is described and illustrated based on larvae and eggs. Eggs of this genus are described for the first time. Morphological differences between the new species and the species from Africa are discussed. The number of species in the genus Securiops is augmented to five.

HTML

XML

PDF

]]>
Research Article Wed, 5 Apr 2023 18:01:00 +0300
A decade of amphibian studies (Animalia, Amphibia) at Sekayu lowland forest, Hulu Terengganu, Peninsular Malaysia https://zookeys.pensoft.net/article/95873/ ZooKeys 1157: 43-93

DOI: 10.3897/zookeys.1157.95873

Authors: Baizul Hafsyam Badli-Sham, Muhamad Fatihah Syafiq, Mohd Shahrizan Azrul Aziz, Natrah Rafiqah Mohd Jalil, Muhammad Taufik Awang, Muhammad Nouril Ammin Othman, Anis Azira Abdul Aziz, Khunirah Dzu, Nurul Asyikin Abdol Wahab, Nor Liyana Jamil, Murni Azima Ismail, Wan Ahmad Aidil Wan Azman, Ooi Xin Wei, Nur Ain Nabilah Jamaha, Mohamad Aqmal-Naser, Muhammad Fahmi-Ahmad, Noor Shahirah-Ibrahim, Syed Ahmad Rizal, Daicus M. Belabut, Chan Kin Onn, Evan Seng Huat Quah, Larry Lee Grismer, Amirrudin B. Ahmad

Abstract: Amphibians of Sekayu lowland forest have been studied more than a decade, with discoveries of new records of species showing no sign of abating between the years 2003 to 2020, indicating the remarkably rich diversity of anurans in this forest. Despite ceaseless anthropogenic activities in this area, this study successfully recorded 52 species of amphibians from 32 genera in the lowland forest of Sekayu. The species composition consisted of a single species from the family Ichthyophiidae and 51 species of anurans of 31 genera and six families. The number of species recorded has steadily increased especially during more recent surveys from 2015 to 2020. This study augments the total number of amphibian species recorded from Hulu Terengganu by ten additional species, increasing the total to 70 species for the district.

HTML

XML

PDF

]]>
Review Article Fri, 31 Mar 2023 18:47:57 +0300
Two new species of Tmethypocoelis Koelbel, 1897 (Decapoda, Brachyura, Dotillidae) from Sulawesi, Indonesia https://zookeys.pensoft.net/article/98930/ ZooKeys 1156: 159-190

DOI: 10.3897/zookeys.1156.98930

Authors: Dewi Citra Murniati, Akira Asakura, Peter J. F. Davie

Abstract: Tmethypocoelis Koelbel, 1897, is a central Indo-West Pacific genus of small intertidal, soft sediment dotillid crabs that includes five recognised species. Two new species, Tmethypocoelis simplex sp. nov. and T. celebensis sp. nov., are here described from Sulawesi, Indonesia. Tmethypocoelis simplex sp. nov. is found on the west coast of Central Sulawesi, while T. celebensis sp. nov. occurs in the north-eastern part of Sulawesi. Both new species differ from each other and known congeners by the male cheliped, male pleon, and male first gonopod characters. The differences in gastric mill morphology further confirm the two species as new. The distinct water current patterns in the Makassar Strait and the Maluku Channel might have contributed to the evolution of these two sibling species.

HTML

XML

PDF

]]>
Research Article Thu, 30 Mar 2023 13:16:33 +0300
A new hexactinellid-sponge-associated zoantharian (Porifera, Hexasterophora) from the northwestern Pacific Ocean https://zookeys.pensoft.net/article/96698/ ZooKeys 1156: 71-85

DOI: 10.3897/zookeys.1156.96698

Authors: Hiroki Kise, Miyuki Nishijima, Akira Iguchi, Junpei Minatoya, Hiroyuki Yokooka, Yuji Ise, Atsushi Suzuki

Abstract: Symbiotic associations between zoantharians and sponges can be divided into two groups: those that associate with Demospongiae and those that associate with Hexactinellida. Parachurabana shinseimaruae Kise, gen. nov. et sp. nov., a new genus and a new species of Hexactinellida-associated zoantharian from Japanese waters, is described. It is characterized by a combination of the following: i) its host hexactinellid sponge, ii) very flat polyps, iii) cteniform endodermal marginal muscles, and iv) characteristic mutations in three mitochondrial regions (including a unique 26-bp deletion in 16S ribosomal DNA) and three nuclear regions. Parachurabana shinseimaruae Kise, gen. nov. et sp. nov. is the third genus in the family Parazoanthidae that is reported to be associated with Hexasterophora sponges. Although specimens have so far only been collected on Takuyo-Daigo Seamount off Minami-Torishima Island in Japan, unidentified zoantharians of similar description have been reported from the waters around Australia, indicating that the species might be widespread across the Pacific.

HTML

XML

PDF

]]>
Research Article Fri, 24 Mar 2023 15:52:11 +0200
A new species of the genus Lindaspio Blake & Maciolek, 1992 (Annelida, Spionidae) from a cold seep near Hainan Island, China https://zookeys.pensoft.net/article/101406/ ZooKeys 1153: 105-112

DOI: 10.3897/zookeys.1153.101406

Authors: Jixing Sui, Dong Dong, Xuwen Wu, Xinzheng Li

Abstract: A new species of the spionid genus Lindaspio Blake & Maciolek, 1992 was collected from a cold seep near the Hainan Island at a depth of 1758 m. Morphologically, Lindaspio polybranchiata sp. nov. differs from the congeners in having a narrow, folded caruncle and more neuropodial branchiae (from chaetiger 20). The 18S, COI, and 16S sequences of the new species have been submitted to GenBank. It is the first record of the genus Lindaspio from Chinese waters. A key to all species of Lindaspio is given.

HTML

XML

PDF

]]>
Research Article Thu, 16 Mar 2023 09:53:47 +0200
A new species of Gracixalus (Anura, Rhacophoridae) from northwestern Vietnam https://zookeys.pensoft.net/article/93566/ ZooKeys 1153: 15-35

DOI: 10.3897/zookeys.1153.93566

Authors: Tung Thanh Tran, Anh Van Pham, Minh Duc Le, Nam Hai Nguyen, Thomas Ziegler, Cuong The Pham

Abstract: A new species of small tree frog is described from northwestern Vietnam based on morphological differences and molecular divergence. Gracixalus truongi sp. nov. is distinguishable from its congeners and other small rhacophorid species on the basis of a combination of the following characters: size relatively small, SVL 32.2–33.1 mm in males, 37.6–39.3 mm in females; head slightly wider than long; vomerine teeth absent; snout round and long RL/SVL 0.17–0.19 in males, 0.16–0.17 in females; spines on upper eyelid absent; supratympanic fold distinct; tympanum distinct; dorsal skin smooth; throat smooth and venter granular; tibiotarsal projection absent; webbing of fingers rudimentary, toes with moderately developed webbing; dorsum moss-green, with an inverse Y-shaped dark green marking extended from interorbital region to posterior region of dorsum; external vocal sac absent in males; males with a nuptial pad on finger I. In the molecular analyses, the new species has no clear sister taxon and is at least 4.5% divergent from other congeners based on a fragment of the mitochondrial 16S rRNA gene.

HTML

XML

PDF

]]>
Research Article Fri, 10 Mar 2023 09:30:50 +0200
Taxonomic review of Manocoreini with description of a new species from China (Hemiptera, Heteroptera, Coreidae) https://zookeys.pensoft.net/article/98234/ ZooKeys 1152: 133-161

DOI: 10.3897/zookeys.1152.98234

Authors: Yanyan Zhou, Huaxi Liu, Wenjun Bu, Zhiqiang Li

Abstract: In the present paper, all seven species of Manocoreini are reviewed, and a new species Manocoreus hsiaoi sp. nov. is described from Guangxi, China. Photographs of habitus of all species, and detailed structures of the new species and type species of Manocoreus Hsiao, 1964 are provided. All species of Manocoreini of the world are keyed. A distribution map of all species is also provided.

HTML

XML

PDF

]]>
Research Article Thu, 9 Mar 2023 18:32:41 +0200
A new species of Bush frog (Anura, Rhacophoridae, Raorchestes) from southeastern Yunnan, China https://zookeys.pensoft.net/article/95616/ ZooKeys 1151: 47-65

DOI: 10.3897/zookeys.1151.95616

Authors: Junkai Huang, Xiao Long Liu, Lingyun Du, Justin M. Bernstein, Shuo Liu, Yun Yang, Guohua Yu, Zhengjun Wu

Abstract: In this study, based on morphological and molecular data, a new bush frog species is described from Yunnan, China. Eleven samples of Raorchestes malipoensis sp. nov. were collected from Malipo County, southeastern Yunnan. This species can be distinguished from other congeners by a combination of 13 morphological characters. Phylogenetic analyses based on the 16S rRNA gene indicate that these individuals form a monophyletic group, and genetic divergence between this clade and its closest relatives is higher than 3.1%, which is comparable to the divergence between recognized Raorchestes species. The discovery of this new species suggests that additional extensive surveys in the southeastern Yunnan would yield more amphibian lineages yet unknown to science.

HTML

XML

PDF

]]>
Research Article Tue, 28 Feb 2023 19:15:09 +0200
A new species of Cletocamptus Schmankevitsch, 1875 (Copepoda, Harpacticoida, Canthocamptidae) from Rayong Province, Eastern Thailand https://zookeys.pensoft.net/article/96715/ ZooKeys 1151: 1-29

DOI: 10.3897/zookeys.1151.96715

Authors: Chaichat Boonyanusith, Koraon Wongkamhaeng

Abstract: Cletocamptus thailandensis sp. nov. was discovered in a water body at the base of a small mountain near the Phang Rat River Delta in Rayong Province, Eastern Thailand. The new species resembles C. goenchim Gómez, Ingole, Sawant & Singh, 2013 and C. koreanus Chang, 2013, but it can be distinguished from these two species based on the armament of the endopodal lobe of the male P5, ornamentations of the abdominal segments, the caudal ramus, the male P3Endp-3, and the relative length of the aesthetasc on the fourth segment of the female antennule. According to the combinations of certain female characteristics, including the number of setae on the P3Endp-2, the relative length of the caudal ramus, the relative length of the inner apical seta on the P3Endp-2, the shape of the P5, and the number of setae on the P3Exp-2, five groups of the Cletocamptus species can be defined.

HTML

XML

PDF

]]>
Research Article Tue, 28 Feb 2023 19:12:48 +0200
A new species of Paracortina from a Vietnamese cave, with remarkable secondary sexual characters in males (Callipodida, Paracortinidae) https://zookeys.pensoft.net/article/99651/ ZooKeys 1149: 181-195

DOI: 10.3897/zookeys.1149.99651

Authors: Anh D. Nguyen, Pavel Stoev, Lien T. P. Nguyen, Tam T. Vu

Abstract: A new millipede species, Paracortina kyrang sp. nov., is described from a cave in Cao Bang Province, northern Vietnam. The new species is diagnosed by having an extraordinarily long projection on the head of males, reduced eyes, a gonocoxite with two processes, a long and slender gonotelopodite with two long, clavate prefemoroidal processes densely covered with long macrosetae apically, and with a distal, reverse, short spine on mesal side, and a rather sinuous distal part of the telopodite. This is the third species of the genus that is known from Vietnam. A brief comparison of some secondary sexual characters is made.

HTML

XML

PDF

]]>
Research Article Thu, 23 Feb 2023 08:04:59 +0200
A new Asian leaf litter toad of the genus Leptobrachella (Amphibia, Anura, Megophryidae) from central south China https://zookeys.pensoft.net/article/85895/ ZooKeys 1149: 103-134

DOI: 10.3897/zookeys.1149.85895

Authors: Jing Liu, Shengchao Shi, Shize Li, Mengfei Zhang, Sunjun Xiang, Gang Wei, Bin Wang

Abstract: A new species of the Asian leaf litter toad genus Leptobrachella from central south China is described. Molecular phylogenetic analyses, based on mitochondrial 16S rRNA and nuclear RAG1 gene sequences indicated the new species as an independent clade in the genus. The new species could be distinguished from its congeners by a combination of the following characters: body of medium size (SVL 29.2–34.2 mm in 15 adult males and 34.4–43.1 mm in seven adult females); distinct black spots present on flanks; toes rudimentary webbed, with wide lateral fringes; ventral belly white with distinct nebulous brown speckling on ventrolateral flanks; skin on dorsum shagreened with fine tiny granules or short ridges; iris copper above, silver below; heels overlapped when thighs are positioned at right angles to the body; tibia-tarsal articulation reaches the middle eye; dorsal surface of tadpole semi-transparent light brown, spots on tail absent, keratodont row formula I: 3+3/2+2: I; call series basically consist of repeated long calls, at dominant frequency (5093 ± 412 Hz).

HTML

XML

PDF

]]>
Research Article Wed, 22 Feb 2023 19:51:20 +0200
Two new species of the genus Terrobittacus Tan & Hua, 2009 (Mecoptera, Bittacidae) https://zookeys.pensoft.net/article/97997/ ZooKeys 1148: 29-39

DOI: 10.3897/zookeys.1148.97997

Authors: Le-Le He, Bao-Zhen Hua

Abstract: Two new species of Terrobittacus Tan & Hua, 2009 are described and illustrated from Sichuan and Guangxi provinces of China, increasing the species number of Terrobittacus to eight. Terrobittacus emeishanicus sp. nov. is differentiated from its congeners by wings with distinct markings and a female subgenital plate with a V-shaped carina. Terrobittacus laoshanicus sp. nov. can be recognized by the black terga VI–IX. A key to species of Terrobittacus is updated. The species distribution and the relationship between adult morphology and mating behavior were briefly discussed.

HTML

XML

PDF

]]>
Research Article Tue, 14 Feb 2023 15:49:21 +0200
Identification and reproductive isolation of Euborellia species (Insecta, Dermaptera, Anisolabididae) from East and Southeast Asia https://zookeys.pensoft.net/article/98248/ ZooKeys 1146: 115-134

DOI: 10.3897/zookeys.1146.98248

Authors: Yoshitaka Kamimura, Chow-Yang Lee, Junsuke Yamasako, Masaru Nishikawa

Abstract: Euborellia (Anisolabididae: Anisolabidinae) is one of the most speciose genera of earwigs (Dermaptera), and its species-level classification is difficult. To settle the classification of brachypterous species with abbreviated tegmina recorded from East and Southeast Asia, we examined the morphology and reproductive isolation of three tentative Euborellia species, and analyzed the DNA barcoding region of the mitochondrial cytochrome oxidase subunit I (COI) gene. The observed complete reproductive isolation among the three Euborellia taxa and considerable differentiation in the COI sequences clearly show that each should be treated as a separate species. Based on morphology, distribution and the DNA sequence, we identify Euborellia sp. 1 of Malaysia as E. annulata (Fabricius), a circumtropical cosmopolitan with no records of a fully winged form. Samples from Ioto Island (= Iwo-jima Island: Ogasawara Islands, southern Japan) were also identified as this species. Euborellia sp. 3, from the main islands of Japan, was generally larger and lacked a Y-shaped pigmented area on the penis lobe, which is characteristic of Euborellia sp. 1. We propose reinstating E. pallipes (Shiraki) as the oldest name for this taxon. Euborellia sp. 2, even the brachypterous form, can be distinguished from these two species by its paler coloration (particularly the femora), ecarinate post-abdomen, and the shape of the male genitalia (parameres). We tentatively identify this species as E. philippinensis Srivastava based on the morphology of the brachypterous form, although the macropterous form cannot be distinguished from E. femoralis (Dohrn).

HTML

XML

PDF

]]>
Research Article Tue, 7 Feb 2023 17:50:56 +0200
A remarkable new species of the flat bug genus Nesoproxius (Hemiptera, Aradidae), the first Oceanian representative with brachyptery https://zookeys.pensoft.net/article/96029/ ZooKeys 1146: 147-163

DOI: 10.3897/zookeys.1146.96029

Authors: Shusuke Shimamoto, Seidai Nagashima, Hiroshi Nagano, Tadashi Ishikawa

Abstract: A new flat bug species, Nesoproxius kishimotoi sp. nov., from the Oceanian region (Ogasawara Islands, Japan) is described. It is the first brachypterous representative in the genus Nesoproxius. The sexual dimorphism, nymph, and habitat are also described for the first time in this genus. A key to the species of Nesoproxius is also provided.

HTML

XML

PDF

]]>
Research Article Tue, 7 Feb 2023 10:40:04 +0200
Three new species in Tetrastemma Ehrenberg, 1828 (Nemertea, Monostilifera) from sublittoral to upper bathyal zones of the northwestern Pacific https://zookeys.pensoft.net/article/95004/ ZooKeys 1146: 135-146

DOI: 10.3897/zookeys.1146.95004

Authors: Natsumi Hookabe, Hisanori Kohtsuka, Yoshihiro Fujiwara, Shinji Tsuchida, Rei Ueshima

Abstract: Monostiliferous nemerteans in the genus Tetrastemma Ehrenberg, 1828 are generally characterized as having four eyes, and they occur worldwide, from the intertidal zone to the deep-sea bottom. Recent extensive sampling of Tetrastemma has explored the high species diversity, including many undescribed forms, but phylogenic analysis has revealed non-monophyly of the genus. We herein describe three new species of the genus (T. album sp. nov., T. persona sp. nov., and T. shohoense sp. nov.) from northwestern Pacific waters based on specimens collected by dredging or by use of a remotely operated vehicle at depths of 116–455 m. Since anatomical and histological characters traditionally used in systematics of the genus are sometimes interspecifically uniform, a histology-free approach is applied for the species descriptions in this study. To confirm the generic affiliation of the new species, a molecular phylogenetic analysis based on partial sequences of cytochrome c oxidase subunit I, 16S rRNA, 18S rRNA, 28S rRNA, and histone H3 genes was performed. Our result shows that all three new species are nested in a subclade formed by species from the North Pacific and American Atlantic, inferring that geographic distribution does not reflect the cladogenesis of Tetrastemma. Furthermore, two Tetrastemma species with a cylindrical stylet basis, T. freyae Chernyshev et al., 2020 from off the coast of India and Hawaii and T. shohoense sp. nov. from Shoho Seamount, Japan, constitute a clade in the resulting tree.

HTML

XML

PDF

]]>
Research Article Tue, 7 Feb 2023 10:32:37 +0200
First record of the genus Touranella Attems, 1937 (Diplopoda, Polydesmida, Paradoxosomatidae) from Laos, with a description of a new species https://zookeys.pensoft.net/article/98704/ ZooKeys 1145: 169-180

DOI: 10.3897/zookeys.1145.98704

Authors: Anh D. Nguyen, Petra Sierwald, Stephanie Ware

Abstract: The paradoxosomatid genus Touranella Attems, 1937 is recorded from Laos for the first time, with a new species, Touranella champasak sp. nov., described here. The taxonomy of the genus is discussed, an identification key is provided, and the current distribution of all species is mapped.

HTML

XML

PDF

]]>
Research Article Fri, 3 Feb 2023 17:38:04 +0200
The bee genus Anthidiellum in Vietnam: descriptions of five new species and the first male of Anthidiellum coronum (Hymenoptera, Megachilidae) https://zookeys.pensoft.net/article/98644/ ZooKeys 1144: 171-196

DOI: 10.3897/zookeys.1144.98644

Authors: Ngat Thi Tran, Michael S. Engel, Cuong Quang Nguyen, Duong Dinh Tran, Lien Thi Phuong Nguyen

Abstract: The Vietnamese fauna of bees in the Anthidiellum Cockerell (Megachilinae, Anthidiini) is reviewed. Seven species are recognized, representing two subgenera. Five new species are described and figured as: Anthidiellum (Clypanthidium) nahang Tran, Engel & Nguyen, sp. nov., A. (Pycnanthidium) ayun Tran, Engel & Nguyen, sp. nov., A. (P.) chumomray Tran, Engel & Nguyen, sp. nov., A. (P.) flavaxilla Tran, Engel & Nguyen, sp. nov., and A. (P.) cornu Tran, Engel & Nguyen, sp. nov. from the northern and central highlands of Vietnam. Two previously described species are newly recorded for the fauna: A. (P.) carinatum (Wu) and A. (P.) coronum (Wu), with the male of the latter species described and illustrated for the first time. An identification key is provided for all species of Anthidiellum occurring in Vietnam.

HTML

XML

PDF

]]>
Research Article Thu, 2 Feb 2023 10:00:01 +0200
A new species of the genus Cephalodella (Rotifera, Monogononta) from Korea, with reports of four additional cephalodellid species https://zookeys.pensoft.net/article/91147/ ZooKeys 1141: 185-199

DOI: 10.3897/zookeys.1141.91147

Authors: Hee-Min Yang, Gi-Sik Min

Abstract: A new monogonont rotifer, Cephalodella binoculata sp. nov., was described from a soil sample collected in Korea. The new species is morphologically similar to C. carina but is distinguished by having two frontal eyespots, a vitellarium with eight nuclei, and the shape of its fulcrum. We also described four other cephalodellid species collected in Korea; Cephalodella auriculata, C. catellina, C. gracilis, and C. tinca. Of these four species, C. gracilis and C. tinca were newly recorded in Korea. We provided the morphological characteristics of the five Cephalodella species along with photographs of trophi observed with a scanning electron microscope. Furthermore, we provided the mitochondrial cytochrome c oxidase subunit I gene sequences of the five species.

HTML

XML

PDF

]]>
Research Article Mon, 23 Jan 2023 17:59:47 +0200
A new species of the Cyrtodactylus brevipalmatus group (Squamata, Gekkonidae) from the uplands of western Thailand https://zookeys.pensoft.net/article/97624/ ZooKeys 1141: 93-118

DOI: 10.3897/zookeys.1141.97624

Authors: L. Lee Grismer, Attapol Rujirawan, Siriwadee Chomdej, Chatmongkon Suwannapoom, Siriporn Yodthong, Akrachai Aksornneam, Anchalee Aowphol

Abstract: An integrative systematic analysis recovered a new species of the Cyrtodactylus brevipalmatus group from the uplands of Thong Pha Phum National Park, Kanchanaburi Province in western Thailand. Cyrtodactylus thongphaphumensis sp. nov. is deeply embedded within the brevipalmatus group, bearing an uncorrected pairwise sequence divergence of 7.6–22.3% from all other species based on a 1,386 base pair segment of the mitochondrial NADH dehydrogenase subunit 2 gene (ND2) and adjacent tRNAs. It is diagnosable from all other species in the brevipalmatus group by statistically significant mean differences in meristic and normalized morphometric characters as well as differences in categorical morphology. A multiple factor analysis recovered its unique and non-overlapping placement in morphospace as statistically significantly different from that of all other species in the brevipalmatus group. The description of this new species contributes to a growing body of literature underscoring the high degree of herpetological diversity and endemism across the sky-island archipelagos of upland montane tropical forest habitats in Thailand, which like all other upland tropical landscapes, are becoming some of the most imperiled ecosystems on the planet.

HTML

XML

PDF

]]>
Research Article Thu, 19 Jan 2023 10:36:05 +0200
Tadpoles of four sympatric megophryinid frogs (Anura, Megophryidae, Megophryinae) from Mangshan in southern China https://zookeys.pensoft.net/article/81641/ ZooKeys 1139: 1-32

DOI: 10.3897/zookeys.1139.81641

Authors: Tianyu Qian, Yonghui Li, Jun Chen, Pipeng Li, Daode Yang

Abstract: Sympatric distribution and potentially long larval development time make the assignment of tadpoles confusing in Asian-horned frogs of the subfamily Megophryinae. In this study, we used molecular data to identify four syntopic megophryinid tadpoles from Mangshan on the border between Hunan and Guangdong provinces in southern China: Brachytarsophrys popei, Boulenophrys shimentaina, Bo. cf. ombrophila, and Bo. nanlingensis. A detailed re-description of the Br. popei tadpoles is provided as well as the first descriptions of three Boulenophrys tadpoles based on external morphology and coloration. An effort is attempted to distinguish these tadpoles by coloration patterns: the dorsal pattern, ventral pattern, and pattern on tail are useful for field identification of these tadpoles. However, the variation of color pattern could sometimes make species delineation difficult. Researchers are encouraged to document coloration in life with photographs and the collection of tadpoles of different development stages and sizes advocated in order to better understand how color may change during larval development.

HTML

XML

PDF

]]>
Research Article Mon, 9 Jan 2023 10:09:56 +0200
Three Loxocaudinae species (Ostracoda, Podocopida) from South Korea https://zookeys.pensoft.net/article/96201/ ZooKeys 1138: 183-209

DOI: 10.3897/zookeys.1138.96201

Authors: Hyunsu Yoo, Pham Thi Minh Huyen, Jinho Chae, Ivana Karanovic

Abstract: For many ostracod groups in Korea, published records are missing or are very limited. Loxocaudinae is one such subfamily, with only one named species, Loxocauda orientalis Schornikov, 2011 reported from Korea. Having fewer than 50 species, this subfamily can be considered a small ostracod group, with most of the species known only by their shell morphology. The diagnoses of genera are based on the shell characters that are often homoplastic, and soft body appendages that are difficult to observe, such as the mandibular exopodite. Because of this, the validity of the entire subfamily and some of its genera have been questioned. Here three Loxocaudinae species were collected from the marine macrobenthic assemblages from Korea. Two are new and belong to the genus Glacioloxoconcha Hartmann, 1990, previously known only from Antarctica: Glacioloxoconcha jeongokensis sp. nov. and Glacioloxoconcha jisepoensis sp. nov. Loxocauda orientalis is briefly redescribed, with some of the populations having unusual morphological features. COI and 18S rRNA sequences of all three species are provided and the latter marker used to assess the position of the subfamily within the family Loxoconchidae and the superfamily Cytheroidea. The resulting tree shows that within the family Loxoconchidae, the genera Glacioloxoconcha and Loxocauda Schornikov, 1969 are the most closely related, with very shallow but well-supported branches. Polyphyletic and paraphyletic natures of several Cytheroidea families are discussed, inferred from the reconstructed phylogeny.

HTML

XML

PDF

]]>
Research Article Fri, 6 Jan 2023 17:18:29 +0200
Two new species of the genus Symphylella (Symphyla, Scolopendrellidae) from China and the significance of the frons chaetotaxy https://zookeys.pensoft.net/article/96424/ ZooKeys 1138: 143-160

DOI: 10.3897/zookeys.1138.96424

Authors: Ya-Li Jin, Yun Bu

Abstract: Symphylella macrochaeta sp. nov. and Symphylella longispina sp. nov. from China are described and illustrated. Symphylella macrochaeta sp. nov. is characterized by 10 extremely long macrosetae arranged as 4/4/2 on the frons, tergites with broad triangular processes, and 4+4 setae on the first tergite. Symphylella longispina sp. nov. is characterized by a thick and prominent labrum, distinctly long proximal spines on the mandible, eight macrosetae arranged as 4/2/2 on frons, 3+3 setae on first tergite, and narrow triangular processes on the tergites. Detailed comparisons of the new species with similar species are presented. In addition, the frons chaetotaxy of Symphylella is illustrated and discussed for the first time and proposed as a significant diagnostic character for the taxonomic study of the genus.

HTML

XML

PDF

]]>
Research Article Thu, 5 Jan 2023 17:11:21 +0200
Molecular data from the holotype of the enigmatic Bornean Black Shrew, Suncus ater Medway, 1965 (Soricidae, Crocidurinae), place it in the genus Palawanosorex https://zookeys.pensoft.net/article/94217/ ZooKeys 1137: 17-31

DOI: 10.3897/zookeys.1137.94217

Authors: Jonathan A. Nations, Thomas C. Giarla, Muhd Amsyari Morni, Julius William Dee, Mark T. Swanson, Anna E. Hiller, Faisal Ali Anwarali Khan, Jacob A. Esselstyn

Abstract: Although Borneo has received more attention from biologists than most other islands in the Malay Archipelago, many questions regarding the systematic relationships of Bornean mammals remain. Using next-generation sequencing technology, we obtained mitochondrial DNA sequences from the holotype of Suncus ater, the only known specimen of this shrew. Several shrews collected recently in Sarawak are closely aligned, both morphologically and mitochondrially, with the holotype of S. ater. Phylogenetic analyses of mitochondrial sequences indicate that the S. ater holotype and new Sarawak specimens do not belong to the genus Suncus, but instead are most closely related to Palawanosorex muscorum. Until now Palawanosorex has been known only from the neighboring Philippine island of Palawan. Additional sequences from nuclear ultra-conserved elements from the new Sarawak specimens strongly support a sister relationship to P. muscorum. We therefore transfer ater to Palawanosorex. The new specimens demonstrate that P. ater is more widespread in northern Borneo than previously recorded. Continued sampling of Bornean mammal diversity and reexamination of type material are critical in understanding the evolutionary history of the biologically rich Malay Archipelago.

HTML

XML

PDF

]]>
Short Communication Wed, 21 Dec 2022 10:40:17 +0200
Two new species and two new records of Homidia (Collembola, Entomobryidae) from China https://zookeys.pensoft.net/article/89373/ ZooKeys 1135: 181-212

DOI: 10.3897/zookeys.1135.89373

Authors: Mei-dong Jing, Yi-tong Ma

Abstract: Homidia, one of the largest genera of the family Entomobryidae, is widely distributed in China. To date, 46 species of this genus are present in China and account for approximately 60 % of all known species of the genus. In the present paper, two new species of Homidia are described from China: H. acutus sp. nov. and H. changensis sp. nov. The former is discriminated by the brown to blue-violet pigment present on whole dorsal body and by pointed tenent hairs. The latter is characterised by having only scattered traces of brown pigment on tergites, and by the special macrochaetal formula of coxae. Additionally, two known species of the genus, H. linhaiensis Shi, Pan & Qi, 2009 and H. socia Denis, 1929, are reported from Jiangxi Province for the first time, and some of their taxonomic characters are described. A key to the Chinese species of the genus is provided.

HTML

XML

PDF

]]>
Research Article Thu, 15 Dec 2022 14:45:38 +0200
A widespread new genus of Baetidae (Baetidae, Ephemeroptera) from Southeast Asia https://zookeys.pensoft.net/article/93800/ ZooKeys 1135: 1-59

DOI: 10.3897/zookeys.1135.93800

Authors: Thomas Kaltenbach, Nikita J. Kluge, Jean-Luc Gattolliat

Abstract: A reinvestigation of type and other material of Baetis javanicus Ulmer, 1913 and Baetis sabahensis Müller-Liebenau, 1984, together with new material from Southeast Asia revealed a new genus, Branchiobaetis gen. nov. The above species are formally assigned to the new genus Branchiobaetis gen. nov. It is characterized by the presence of accessory gills ventrally near fore coxa and at the base of maxillae, a peculiar folding of the gonostyli developing under the cuticle of last instar male larvae, together with a unique combination of other larval characters. Besides the two formerly described species, five new species are identified using a combination of morphology and molecular characters (COI, Kimura 2-parameter distances), four species from Sumatra and one from the Philippines. They are described and illustrated at the larval stage. Additionally, a complementary description of larva and adult stages of the generic type species B. javanicus comb. nov. as well as the first description of the eggs are provided. Furthermore, new reports of B. javanicus comb. nov. and B. sabahensis comb. nov. are indicated. The distribution of Branchiobaetis gen. nov. includes the Indonesian Sunda Islands, Borneo, and the Philippines. A key to the larval stage of all species is provided.

HTML

XML

PDF

]]>
Research Article Mon, 12 Dec 2022 18:46:58 +0200