Latest Articles from ZooKeys Latest 18 Articles from ZooKeys https://zookeys.pensoft.net/ Fri, 29 Mar 2024 12:05:51 +0200 Pensoft FeedCreator https://zookeys.pensoft.net/i/logo.jpg Latest Articles from ZooKeys https://zookeys.pensoft.net/ Pseudoscorpions (Arachnida, Pseudoscorpiones) from French Polynesia with first species records and description of new species https://zookeys.pensoft.net/article/111308/ ZooKeys 1192: 29-43

DOI: 10.3897/zookeys.1192.111308

Authors: Katarína Krajčovičová, Thibault Ramage, Frédéric A. Jacq, Jana Christophoryová

Abstract: A new species Olpium caputi sp. nov. from Tahiti is described here based on external characters. This is the first record of the family Olpiidae Banks, 1895 from French Polynesia. Additionally, the genus Paratemnoides Harvey, 1991 is recorded from French Polynesia for the first time with the full description of new-found specimens of Paratemnoides assimilis (Beier, 1932). New localities of Geogarypus longidigitatus (Rainbow, 1897) are added. An identification key to pseudoscorpions of French Polynesia is provided.

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Research Article Mon, 19 Feb 2024 16:32:21 +0200
A new genus and five new species of pseudoscorpions (Arachnida, Pseudoscorpiones, Withiidae) from Colombia https://zookeys.pensoft.net/article/106698/ ZooKeys 1184: 301-326

DOI: 10.3897/zookeys.1184.106698

Authors: Catalina Romero-Ortiz, Carlos E. Sarmiento, Mark S. Harvey

Abstract: The pseudoscorpion family Withiidae is widely distributed around the world, with most of its diversity in tropical areas. Five new species and a new genus from Colombia are described: Cystowithius florezi sp. nov., Parawithius bromelicola sp. nov., Oligowithius achagua sp. nov., and the genus Paciwithius gen. nov. with two species Paciwithius valduparensis sp. nov. and Paciwithius chimbilacus sp. nov. A reassessment of the subgenus Dolichowithius (Oligowithius) Beier, 1936 allows the elevation to a full generic level, and the transfer of the only known species to Oligowithius, forming the new combination Oligowithius abnormis (Beier, 1936), comb. nov.

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Research Article Wed, 22 Nov 2023 09:01:49 +0200
Description of two Stenohya species from China (Pseudoscorpiones, Neobisiidae), with comments on the exaggerated sexual dimorphic pedipalp in this genus https://zookeys.pensoft.net/article/104773/ ZooKeys 1172: 217-237

DOI: 10.3897/zookeys.1172.104773

Authors: Nana Zhan, Zegang Feng, Xiangbo Guo, Feng Zhang

Abstract: Two Stenohya species belonging to the family Neobisiidae are diagnosed, described, and illustrated from China: Stenohya spinata sp. nov. from Chongqing Municipality, and Stenohya huangi Hu & Zhang, 2012 from Fujian Province. The male of S. huangi is reported for the first time. Diagnostic characters of this species are restricted based on the holotype and the new specimens. In addition, a key and a distribution map of the Stenohya species from China are provided, and the potential function of the exaggerated sexual dimorphic pedipalp in the genus Stenohya is discussed.

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Research Article Wed, 26 Jul 2023 09:13:16 +0300
First record of the genus Catatemnus Beier, 1932 from China, with the description of six new species (Pseudoscorpiones, Atemnidae) https://zookeys.pensoft.net/article/100798/ ZooKeys 1168: 295-327

DOI: 10.3897/zookeys.1168.100798

Authors: Yanmeng Hou, Lingchen Zhao, Feng Zhang

Abstract: The genus Catatemnus Beier, 1932 is reported for the first time from China and includes six new species: C. huae sp. nov. from Hainan Island, C. laminosus sp. nov., C. ramus sp. nov., C. scaber sp. nov., and C. tengchongensis sp. nov. all from Yunnan Province, and C. tibetanus sp. nov. from Xizang Autonomous Region. Descriptions and illustrations of all the new species are provided.

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Research Article Mon, 3 Jul 2023 09:46:27 +0300
Three new species of cave-adapted pseudoscorpions (Pseudoscorpiones, Chthoniidae) from eastern Yunnan, China https://zookeys.pensoft.net/article/99537/ ZooKeys 1153: 73-95

DOI: 10.3897/zookeys.1153.99537

Authors: Yanmeng Hou, Zegang Feng, Feng Zhang

Abstract: Three new cave-adapted chthoniid pseudoscorpions from four karst caves of Yunnan Province (China) are described, including detailed diagnosis and illustrations: Tyrannochthonius calvatus sp. nov. from an unnamed cave and Dongtianfu Cave (Fuyuan County), T. capito sp. nov. from Xianren Cave (Xichou County), and Lagynochthonius daidaiensis sp. nov. from Daidai Cave (Qiubei County). All three species are endemic to Yunnan. Tyrannochthonius calvatus sp. nov., lacking the carapaceal antero-median setae and having intercalary teeth on the movable chelal finger only, is a peculiar chthoniid species.

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Research Article Wed, 15 Mar 2023 16:46:04 +0200
Four new species of cave-adapted pseudoscorpions (Pseudoscorpiones, Pseudotyrannochthoniidae) from Guizhou, China https://zookeys.pensoft.net/article/96639/ ZooKeys 1139: 33-69

DOI: 10.3897/zookeys.1139.96639

Authors: Zhizhong Gao, Yanmeng Hou, Feng Zhang

Abstract: Four new troglomorphic pseudotyrannochthoniid pseudoscorpion species collected from karst caves in Guizhou Province are described with detailed diagnoses and illustrations: Allochthonius bainiensis sp. nov. from Liangfeng Cave (Xishui County), Allochthonius pandus sp. nov. from Daozuo Cave (Xishui County), Allochthonius xinqiaoensis sp. nov. from Sanjie Cave (Fenggang County), and Spelaeochthonius wulibeiensis sp. nov. from Wulibei Cave (Weining County). Spelaeochthonius wulibeiensis sp. nov. represents the first record of the genus in China. The diagnostic features of these four new cave-adapted (troglomorphic) species are presented and discussed, as well as compared with closely related species. The data on their distribution, habitat and ecology of the species are also given.

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Research Article Mon, 9 Jan 2023 10:12:27 +0200
Five new troglobitic species of Tyrannochthonius (Arachnida, Pseudoscorpiones, Chthoniidae) from the Yunnan, Guizhou and Sichuan Provinces, China https://zookeys.pensoft.net/article/91235/ ZooKeys 1131: 173-195

DOI: 10.3897/zookeys.1131.91235

Authors: Yun-Chun Li

Abstract: Five new species of the genus Tyrannochthonius Chamberlin, 1929 are described from caves in the provinces of Yunnan (T. huilongshanensis sp. nov., T. xinzhaiensis sp. nov., and T. yamuhensis sp. nov.), Guizhou (T. dongjiensis sp. nov.), and Sichuan (T. huaerensis sp. nov.). An identification key is provided for all known representatives of the genus Tyrannochthonius from China.

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Research Article Wed, 23 Nov 2022 15:39:44 +0200
Cave-inhabiting Cheliferidae (Arachnida, Pseudoscorpiones) from Thailand, with description of four new species of Metachelifer Redikorzev https://zookeys.pensoft.net/article/78808/ ZooKeys 1103: 171-188

DOI: 10.3897/zookeys.1103.78808

Authors: Yun-Chun Li, Ai-Min Shi

Abstract: Four new species of the genus Metachelifer Redikorzev, 1938 are described from caves in the provinces of Tak (M. takensis sp. nov. and M. thailandicus sp. nov.), Chiangmai (M. mahnerti sp. nov.), and Nakhon Ratchasima (M. cheni sp. nov.). An identification key is provided to all known world representatives of the genus Metachelifer.

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Research Article Fri, 3 Jun 2022 11:53:38 +0300
The pseudoscorpions of the Caucasian Sphagnum bogs: part I. Description of Neobisium (Neobisium) adjaricum sp. nov. and redescription of the holotype of N. (N.) vilcekii Krumpál, 1983 (Arachnida, Pseudoscorpiones, Neobisiidae) https://zookeys.pensoft.net/article/81910/ ZooKeys 1100: 165-190

DOI: 10.3897/zookeys.1100.81910

Authors: Vasiliy B. Kolesnikov, Jana Christophoryová, Andrey A. Przhiboro, Ilya S. Turbanov

Abstract: A new species of pseudoscorpions, Neobisium (Neobisium) adjaricum sp. nov., is described and diagnosed. It was collected in the Sphagnum habitats of Ispani lowland mires in Transcaucasia (Republic of Adjara, Georgia). The habitat of N. (N.) adjaricum sp. nov. is described. The holotype of N. (N.) vilcekii Krumpál, 1983, a species most similar morphologically to N. (N.) adjaricum sp. nov., known from the North Caucasus (Republic of North Ossetia–Alania, Russia), is redescribed. Diagnostic characters of the relative Caucasian species of the subgenus Neobisium Chamberlin, 1930 are analysed.

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Research Article Mon, 16 May 2022 13:04:09 +0300
Two new species of cave-adapted pseudoscorpions (Pseudoscorpiones, Chthoniidae) from Yunnan, China https://zookeys.pensoft.net/article/82527/ ZooKeys 1097: 65-83

DOI: 10.3897/zookeys.1097.82527

Authors: Yanmeng Hou, Zhizhong Gao, Feng Zhang

Abstract: Two new cave-adapted pseudoscorpion species belonging to the family Chthoniidae are described: Tyrannochthonius pandus sp. nov. from Biyu Cave (Yunnan: Luxi) and Lagynochthonius laoxueyanensis sp. nov. from Laoxueyan Cave (Yunnan: Yanshan). Both of them, collected from the dark zone of caves, are highly troglomorphic species.

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Research Article Wed, 20 Apr 2022 10:17:06 +0300
The first species of the pseudoscorpion genus Lechytia Balzan, 1892 (Pseudoscorpiones, Chthoniidae) from New Zealand https://zookeys.pensoft.net/article/56313/ ZooKeys 1000: 19-29

DOI: 10.3897/zookeys.1000.56313

Authors: Jana Christophoryová, Katarína Krajčovičová

Abstract: The subfamily Lechytiinae is reported from New Zealand for the first time. A new species, Lechytia novaezealandiae sp. nov., is described and illustrated from Lake Waikare in Waikato District, North Island. In addition, a key to species in the genus Lechytia from Asia, Australia, and New Zealand is included.

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Research Article Thu, 3 Dec 2020 12:22:49 +0200
Two new pseudoscorpion species (Pseudoscorpiones, Chthoniidae, Cheiridiidae) from the Tonga Islands, Polynesia, with a redescription of the genus Nesocheiridium https://zookeys.pensoft.net/article/49351/ ZooKeys 927: 37-51

DOI: 10.3897/zookeys.927.49351

Authors: Katarína Krajčovičová, Aleksandr Vladimirovich Matyukhin, Jana Christophoryová

Abstract: The genera Tyrannochthonius Chamberlin, 1929 and Nesocheiridium Beier, 1957 are recorded from the Tonga Islands, Polynesia, for the first time. Tyrannochthonius eua sp. nov. is described from the island of Eua. Nesocheiridium onevai sp. nov. is described from the island of Onevai. This is the first discovery of a representative of the genus Nesocheiridium in more than 60 years. The holotype of the type species, Nesocheiridium stellatum Beier, 1957, is redescribed, allowing a better understanding of this poorly known genus. The genus Nesocheiridium is diagnosed by the following combination of characters: integument coarsely granulate, dorsally granulo-reticulate; vestitural setae either relatively long, with a leaf-like outline, or arcuate with a small spine; cucullus short; only 10 abdominal tergites visible in dorsal view; cheliceral rallum of four blades; venom apparatus present in both chelal fingers; fixed chelal finger with granulate swelling mesally and seven trichobothria; trichobothria ib and ist located distad of granulate swelling; eb and esb situated close together at the base of the finger; moveable chelal finger with two trichobothria.

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Research Article Thu, 16 Apr 2020 09:56:26 +0300
Pseudoscorpiones and Scorpiones of Canada https://zookeys.pensoft.net/article/27121/ ZooKeys 819: 67-72

DOI: 10.3897/zookeys.819.27121

Authors: Elyssa Cameron, Christopher M. Buddle

Abstract: Twenty-five species of pseudoscorpions are known from Canada, a five-fold increase since an assessment from 1979. The diversity and distribution of Canadian species are poorly known and at least 27 more species are expected to be found in the country. Currently 46 Barcode Index Numbers are assigned to Canadian specimens, suggesting a high level of undocumented diversity. Only one scorpion species is known from Canada and no other species are expected.

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Checklist Thu, 24 Jan 2019 18:00:06 +0200
Morphological and cytogenetic characteristics of Neobisium (Blothrus) slovacum Gulička, 1977 (Pseudoscorpiones, Neobisiidae), the northernmost troglobitic species of the subgenus Blothrus in Europe https://zookeys.pensoft.net/article/27189/ ZooKeys 817: 113-130

DOI: 10.3897/zookeys.817.27189

Authors: Martina Červená, František Šťáhlavský, Vladimír Papáč, Ľubomír Kováč, Jana Christophoryová

Abstract: A redescription is provided of the adult, tritonymph and deutonymph life stages of the troglobitic Neobisium (Blothrus) slovacum Gulička, 1977, which is known from Slovakia and Hungary. Material examined included 35 previously deposited museum specimens and 15 newly collected specimens. In addition, the karyotype and distribution of 18S rDNA clusters are described, using fluorescence in situ hybridization (FISH). The male karyotype of N. slovacum comprises 69 chromosomes, with a predominance of biarmed chromosomes, and an X0 sex chromosome system. Two pairs of signals for 18S rDNA on biarmed chromosomes (submetacentric and metacentric) of different sizes were identified. The present study provides the first information about the distribution of these clusters in the arachnid order Pseudoscorpiones. The geographic distribution of the species is summarized and mapped. Neobisium slovacum is endemic to the Slovak and Aggtelek Karst area in southern Slovakia and north-western Hungary, where it has been recorded from 16 caves. One of these, Hačavská cave (in Slovakia), is the northernmost locality known for any species of the subgenus Blothrus.

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Research Article Tue, 15 Jan 2019 01:17:29 +0200
A multivariate study of differentiating characters between three European species of the genus Lasiochernes Beier, 1932 (Pseudoscorpiones, Chernetidae) https://zookeys.pensoft.net/article/8445/ ZooKeys 629: 51-81

DOI: 10.3897/zookeys.629.8445

Authors: Jana Christophoryová, Katarína Krajčovičová, Hans Henderickx, Stanislav Španiel

Abstract: Morphological variation in three rarely collected European species of the genus Lasiochernes Beier, 1932 is thoroughly examined in the present study. Detailed descriptions of previously ignored morphological characters of L. cretonatus Henderickx, 1998, L. jonicus (Beier, 1929) and L. pilosus (Ellingsen, 1910) are presented. The female of L. cretonatus and the nymphs of L. pilosus are described for the first time. Multivariate morphometric techniques (principal coordinate analysis and discriminant analyses) were employed to confirm morphological differentiation of the three Lasiochernes species and to identify the most reliable characters for their separation. The usefulness of particular body parts for species identification was evaluated. An identification key for the females of the Lasiochernes species studied is provided. Geographic distribution and habitat preferences of the three species are summarized.

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Research Article Mon, 7 Nov 2016 00:21:49 +0200
Interaction of the tracheal tubules of Scutigera coleoptrata (Chilopoda, Notostigmophora) with glandular structures of the pericardial septum https://zookeys.pensoft.net/article/5540/ ZooKeys 510: 233-242

DOI: 10.3897/zookeys.510.8644

Authors: Gero Hilken, Gregory D. Edgecombe, Carsten H.G. Mueller, Andy Sombke, Christian S. Wirkner, Jörg Rosenberg

Abstract: Notostigmophora (Scutigeromorpha) exhibit a special tracheal system compared to other Chilopoda. The unpaired spiracles are localized medially on the long tergites and open into a wide atrium from which hundreds of tracheal tubules originate and extend into the pericardial sinus. Previous investigators reported that the tracheal tubules float freely in the hemolymph. However, here we show for the first time that the tracheal tubules are anchored to a part of the pericardial septum. Another novel finding is this part of the pericardial septum is structured as an aggregated gland on the basis of its specialized epithelium being formed by hundreds of oligocellular glands. It remains unclear whether the pericardial septum has a differently structure in areas that lack a connection with tracheal tubules. The tracheal tubules come into direct contact with the canal cells of the glands that presumably secrete mucous substances covering the entire luminal cuticle of the tracheal tubules. Connections between tracheae and glands have not been observed in any other arthropods.

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Research Article Tue, 30 Jun 2015 00:00:00 +0300
Description of two new Stenohya species from China (Pseudoscorpiones, Neobisiidae) https://zookeys.pensoft.net/article/2965/ ZooKeys 213: 79-91

DOI: 10.3897/zookeys.213.2237

Authors: Junfang Hu, Feng Zhang

Abstract: Two new species of the genus Stenohya Beier, 1967 are described from China: Stenohya pengae sp. n. (male and female; type locality Daming Mountain, Nanning City, Guangxi Zhuang Autonomous Region) and S. huangi sp. n. (female; type locality Gushan Mountain, Fuzhou City, Fujian Prov.). The presence of S. pengae sp. n. in the tree crown of Castanopsis fabri represents a new habitat for Neobisiidae. A key and a distribution map of the Chinese Stenohya species are also provided.

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Short Communication Wed, 1 Aug 2012 00:00:00 +0300
Roncus elbulli (Arachnida, Pseudoscorpiones), a new species from Cap de Creus Nature Park (Catalonia, Spain), with a key to the Spanish species of the genus Roncus https://zookeys.pensoft.net/article/1975/ ZooKeys 8: 19-34

DOI: 10.3897/zookeys.8.110

Authors: Juan Zaragoza, Hans Henderickx

Abstract: Roncus elbulli sp. n. is described from Cap de Creus Nature Park (Catalonia, Spain). The new species is morphologically close to Roncus cadinensis Zaragoza, 2007 (Barcelona province), but differs by being smaller in size anda more robust chela with a different microsetae pattern. The new species seems to be restricted to coastal semiarid slopes with garrigue vegetation. A key to the Spanish species of the genus Roncus is provided.

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Research Article Tue, 28 Apr 2009 00:00:00 +0300