Latest Articles from ZooKeys Latest 34 Articles from ZooKeys https://zookeys.pensoft.net/ Fri, 29 Mar 2024 03:05:05 +0200 Pensoft FeedCreator https://zookeys.pensoft.net/i/logo.jpg Latest Articles from ZooKeys https://zookeys.pensoft.net/ Three new species of Quadrastichus Girault (Hymenoptera, Eulophidae) from China with a key to Chinese species https://zookeys.pensoft.net/article/111723/ ZooKeys 1187: 169-188

DOI: 10.3897/zookeys.1187.111723

Authors: Wen-Jian Li, Cheng-De Li

Abstract: Six species of Quadrastichus Girault (Eulophidae: Tetrastichinae) from China are reviewed, including three new species: Q. longiseta sp. nov., Q. flavomaculatus sp. nov., Q. longiscapus sp. nov. and one new country record, Q. vacuna (Walker, 1839). New distributional data for Q. anysis (Walker, 1839) and Q. sajoi (Szelényi, 1941), and a key to the Chinese species of Quadrastichus based on females, are included.

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Research Article Wed, 20 Dec 2023 17:21:51 +0200
A new species of Entedon Dalman (Hymenoptera, Eulophidae) and three newly recorded species from China https://zookeys.pensoft.net/article/104676/ ZooKeys 1172: 1-14

DOI: 10.3897/zookeys.1172.104676

Authors: Ming-Rui Li, Cheng-De Li

Abstract: In this paper, a new species of Entedon Dalman, E. flavifemur sp. nov. is described from Tibet and three species, E. albifemur Kamijo, E. crassiscapus Erdös, and E. nomizonis Kamijo are reported from China for the first time. A detailed description and illustrations of the new species are provided, as well as diagnoses and illustrations of the three newly recorded species.

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Research Article Fri, 21 Jul 2023 16:43:02 +0300
A new species of Diglyphus Walker (Hymenoptera, Eulophidae) from China, with morphological characterizations and molecular analysis https://zookeys.pensoft.net/article/98853/ ZooKeys 1148: 65-78

DOI: 10.3897/zookeys.1148.98853

Authors: Wei-Jie Wan, Su-Jie Du, Christer Hansson, Wan-Xue Liu

Abstract: Diglyphus Walker, 1844 (Hymenoptera: Eulophidae) is an economically important genus including species acting as biocontrol agents against agromyzid leafminer pests. A new species of Diglyphus, Diglyphus difasciatus Liu, Hansson & Wan, sp. nov., was discovered during the identification of agromyzid leafminers and their associated parasitoid wasps collected from 2016 to 2022 in China, based on morphological characteristics and molecular analyses of COI, ITS2 and 28S genes. Diglyphus difasciatus is similar to D. bimaculatus Zhu, LaSalle & Huang, distinguished by two interconnected infuscate vertical bands on the fore wing and the color of the scape. Molecular data support D. difasciatus and D. bimaculatus as two different species. The mean genetic distances between D. difasciatus and D. bimaculatus were 11.33%, 8.62%, and 0.18%, based on the COI, ITS2, and 28S genes, respectively.

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Research Article Wed, 15 Feb 2023 12:26:42 +0200
A new species and three newly recorded species of Tetrastichinae (Hymenoptera, Eulophidae) from China https://zookeys.pensoft.net/article/90688/ ZooKeys 1131: 197-215

DOI: 10.3897/zookeys.1131.90688

Authors: Wen-Jian Li, Cheng-De Li

Abstract: Five species of five genera in Tetrastichinae (Hymenoptera, Eulophidae) from China are reviewed, including one new species, Mestocharella qingdaoensis sp. nov., and three new country record species: Nesolynx thymus (Girault, 1916), Holcotetrastichus rhosaces (Walker, 1839), and Peckelachertus diprioni Yoshimoto, 1970. New distributional data for Ceratoneura indi Girault, 1917 are provided.

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Research Article Thu, 24 Nov 2022 18:28:48 +0200
First record of Tamarixia dahlsteni Zuparko (Hymenoptera, Eulophidae), a parasitoid of Trioza eugeniae Froggatt (Hemiptera, Triozidae) and current status of the Tamarixia species in Mexico https://zookeys.pensoft.net/article/90577/ ZooKeys 1129: 73-83

DOI: 10.3897/zookeys.1129.90577

Authors: Kenzy I. Peña-Carrillo, Antonio Rodríguez-Rivas, Sara G. Díaz-Ramos, Mayra A. Gómez-Govea, Patricia Zambrano-Robledo, Iram P. Rodríguez-Sánchez, María de Lourdes Ramírez-Ahuja

Abstract: Parasitic wasps of the genus Tamarixia represent important biological control agents of members of the true bug group, Psylloidea, and are host specific; therefore, they can be used to control insect pests. In this study we report, for the first time, the presence of the parasitoid Tamarixia dahlsteni in Mexico and its mitochondrial barcode region of the cytochrome oxidase I gene (COI). We also review the species diversity of the genus Tamarixia in Mexico.

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Research Article Fri, 11 Nov 2022 17:32:52 +0200
Two new species of Deutereulophus Schulz (Hymenoptera, Eulophidae) from China, with a key to Chinese species https://zookeys.pensoft.net/article/86598/ ZooKeys 1114: 1-9

DOI: 10.3897/zookeys.1114.86598

Authors: Jun-Jie Fan, Cheng-De Li

Abstract: Two new species of Deutereulophus Schulz, D. felix sp. nov. and D. daguisiensis sp. nov., are described from China. A key to species of Deutereulophus known from China is provided.

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Research Article Wed, 20 Jul 2022 13:39:40 +0300
Two new species of Hemiptarsenus Westwood (Hymenoptera, Eulophidae) from China, with a key to Chinese species https://zookeys.pensoft.net/article/85228/ ZooKeys 1103: 45-56

DOI: 10.3897/zookeys.1103.85228

Authors: Jun-Jie Fan, Cheng-De Li

Abstract: Two new species of Hemiptarsenus Westwood, H. tianshuiensis sp. nov. and H. longjiangensis sp. nov., are described from China. New distributional data for H. jilinus Tao, 2021 are provided, and a key to Chinese species of the genus is given based on females.

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Research Article Thu, 26 May 2022 10:57:47 +0300
Four new species of Diglyphomorphomyia Girault (Hymenoptera, Eulophidae) from China, with a key to Chinese species https://zookeys.pensoft.net/article/80671/ ZooKeys 1095: 111-121

DOI: 10.3897/zookeys.1095.80671

Authors: Jun-Jie Fan, Cheng-De Li

Abstract: Four new species of Diglyphomorphomyia Girault, D. depressa sp. nov., D. fossa sp. nov., D. hainana sp. nov., and D. octoseta sp. nov., are described from China. A key to the eight species of the genus Diglyphomorphomyia occurring in China is provided.

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Research Article Wed, 13 Apr 2022 17:21:04 +0300
Morphological and molecular identification of arrhenotokous strain of Diglyphus wani (Hymenoptera, Eulophidae) found in China as a control agent against agromyzid leafminers https://zookeys.pensoft.net/article/72433/ ZooKeys 1071: 109-126

DOI: 10.3897/zookeys.1071.72433

Authors: Su-Jie Du, Zoya Yefremova, Fu-Yu Ye, Chao-Dong Zhu, Jian-Yang Guo, Wan-Xue Liu

Abstract: Diglyphus species are ecologically and economically important on agromyzid leafminers. In 2018, a thelytokous species, Diglyphus wani Liu, Zhu & Yefremova, was firstly reported and described. Subsequently, the arrhenotokous D. wani were discovered in Yunnan and Guizhou Provinces of China. We compared the morphological characteristics of thelytokous and arrhenotokous strains. However, the females of two strains had a strongly similar morphology and showed subtle differences in fore- and hind-wings. The difference was that forewing of arrhenotokous female was with denser setae overall, showing that costal cell with 2 ~ 4 rows of setae on dorsal surface and the setae of basal cell with 15 ~ 21 hairs and forewing of thelytokous female was with two rows of setae on dorsal surface and basal cell with 10 ~ 15 hairs generally. The setation beneath the marginal vein of the hind-wing of arrhenotokous female is denser than the same area of thelytokous female. To explore the genetic divergence between thelytokous and arrhenotokous strains of D. wani, the mitochondrial and nuclear gene were applied and sequenced. The polygenic analyses revealed that two strains can be distinguished by COI, ITS1 and ITS2. The mean sequence divergence between the two strains was 0.052, 0.010 and 0.007, respectively. Nevertheless, the 28S gene was unfeasible due to its containing a sharing haplotype between different strains. The two strains of D. wani are dominant parasitoids against agromyzid leafminers and such effective discernible foundation provides future in-depth studies on biological characteristics, along with insight into field application of two strains of D. wani.

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Research Article Wed, 17 Nov 2021 10:59:21 +0200
Three new species of Stenomesius Westwood (Hymenoptera, Eulophidae) from China, with a key to Chinese species https://zookeys.pensoft.net/article/67487/ ZooKeys 1062: 1-10

DOI: 10.3897/zookeys.1062.67487

Authors: Jun-Jie Fan, Cheng-De Li

Abstract: Three new species of Stenomesius Westwood, S. guanshanensis sp. nov., S. hani sp. nov., and S. harbinensis sp. nov., are described from China. A key to all species of the genus Stenomesius in China is provided.

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Research Article Tue, 12 Oct 2021 15:09:48 +0300
A new species of Asecodes Förster (Hymenoptera, Eulophidae) and first record of A. reticulatum (Kamijo) from China, with a key to Chinese species https://zookeys.pensoft.net/article/65964/ ZooKeys 1049: 1-14

DOI: 10.3897/zookeys.1049.65964

Authors: Ming-Rui Li, Cheng-De Li

Abstract: A new species of Asecodes Förster, A. medogense sp. nov. is described from Tibet, China and A. reticulatum (Kamijo) is reported from China for the first time. A key to all known species of genus Asecodes in China is provided.

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Research Article Thu, 15 Jul 2021 14:20:15 +0300
A new species of Hemiptarsenus Westwood (Hymenoptera, Eulophidae) from China, with a key to Chinese species https://zookeys.pensoft.net/article/62129/ ZooKeys 1033: 173-181

DOI: 10.3897/zookeys.1033.62129

Authors: Shu-xia Tao, Kun Huang, Jing Tian, Chang-chun Ruan

Abstract: A new species, Hemiptarsenus jilinus Tao, sp. nov., is described and illustrated. All the type specimens were reared from Chromatomyia horticola (Goureau) (Diptera: Agromyzidae), a leafminer attacking the plants Ixeris polycephala Cass. and Pterocypsela indica (L.) Shih, in Jilin Province, north-eastern China. A key to Chinese species of the genus is provided.

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Research Article Thu, 22 Apr 2021 00:53:26 +0300
Two new species of Neotrichoporoides Girault (Hymenoptera, Eulophidae) from China and a key to Chinese species https://zookeys.pensoft.net/article/61580/ ZooKeys 1023: 61-79

DOI: 10.3897/zookeys.1023.61580

Authors: Wen-Jian Li, Cheng-De Li

Abstract: Seven species of Neotrichoporoides Girault from China are reviewed, including two new species: N. basiflavus sp. nov., N. flavothorax sp. nov. and two new country record species: N. cavigena Graham, 1991, N. szelenyii (Erdös, 1951). New distributional data for N. mediterraneus Graham, 1986, N. nyemitawus (Rohwer, 1921) and N. viridimaculatus (Fullaway, 1955) are provided and a key to Chinese species is given based on females.

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Research Article Thu, 11 Mar 2021 20:54:39 +0200
The genus Eriastichus La Salle (Hymenoptera, Eulophidae, Tetrastichinae) in the Neotropical region, introducing 48 new species https://zookeys.pensoft.net/article/60364/ ZooKeys 1019: 35-91

DOI: 10.3897/zookeys.1019.60364

Authors: Christer Hansson

Abstract: Our knowledge of the recently described genus Eriastichus La Salle is greatly enhanced with the addition of 48 new species: E. acribis sp. nov., E. aphritis sp. nov., E. cluridis sp. nov., E. coelotis sp. nov., E. colenis sp. nov., E. copalensis sp. nov., E. daptilis sp. nov., E. decoris sp. nov., E. denotatis sp. nov., E. derilis sp. nov., E. diadrys sp. nov., E. dotaensis sp. nov., E. drupis sp. nov., E. ebulis sp. nov., E. egrestis sp. nov., E. eleagnis sp. nov., E. ellipsis sp. nov., E. eminis sp. nov., E. facilis sp. nov., E. fenestris sp. nov., E. follis sp. nov., E. galeatis sp. nov., E. geratis sp. nov., E. glanis sp. nov., E. hilaris sp. nov., E. johnlasallei sp. nov., E. johnnoyesi sp. nov., E. maniatis sp. nov., E. nebulis sp. nov., E. neonis sp. nov., E. nexilis sp. nov., E. novalis sp. nov., E. nugalis sp. nov., E. oasis sp. nov., E. ononis sp. nov., E. orestis sp. nov., E. pallidops sp. nov., E. parabilis sp. nov., E. renodis sp. nov., E. rivalis sp. nov., E. sannionis sp. nov., E. scalaris sp. nov., E. sodalis sp. nov., E. taraxis sp. nov., E. tendrilis sp. nov., E. tonioazofeifai sp. nov., E. velaminis sp. nov., and E. vestis sp. nov. All species are known only from males, and all material is from Costa Rica. Females show little morphological variation and are not possible to separate to species or link to conspecific males at present. Apart from the diagnostic features for the genus presented in the original description, two new autapomorphies are introduced here: an inflated pleural membrane between Gt1-4 and Gs1-4, and tufts of pale and flattened setae laterally on Gt4-6. Both features are found on the gaster and are present in both sexes. The distribution of the genus is firmly established as predominantly neotropical. The biology remains unknown.

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Research Article Mon, 22 Feb 2021 22:11:48 +0200
Four new species of Closterocerus Westwood (Hymenoptera, Eulophidae) from China, with a key to Chinese species https://zookeys.pensoft.net/article/62256/ ZooKeys 1017: 21-36

DOI: 10.3897/zookeys.1017.62256

Authors: Ming-Rui Li, Cheng-De Li

Abstract: Four new species of Closterocerus Westwood, C. rectisulcus sp. nov., C. shaanxiensis sp. nov., C. separatus sp. nov. and C. unifasciatus sp. nov. are described from China, each with a distinct pattern on the fore wings, and belonging to subgenus Closterocerus. A key to all species of the genus Closterocerus in China is provided.

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Research Article Fri, 12 Feb 2021 17:46:43 +0200
Two new species of Dzhanokmenia (Hymenoptera, Eulophidae) from China, with first report on a host association for the genus https://zookeys.pensoft.net/article/57556/ ZooKeys 1009: 67-79

DOI: 10.3897/zookeys.1009.57556

Authors: Qin Li, Chao Wang, Hong-Ying Hu

Abstract: Two new species of Dzhanokmenia Kostjukov (Hymenoptera: Eulophidae: Tetrastichinae), D. stefaniolae Li, Wang & Hu, sp. nov. and D. yuxuannis Li, Wang & Hu, sp. nov., are described and illustrated from Xinjiang Uyghur Autonomous Region, China. D. stefaniolae was reared from stem-galls made by Stefaniola sp. (Diptera: Cecidomyiidae) on black saxaul, Haloxylon ammodendron (Chenopodiaceae); D. yuxuannis was collected by sweeping from both black saxaul and white saxaul, H. persicum, in Beishawo Desert near Fukang. A key to females of all known species of Dzhanokmenia is provided.

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Research Article Mon, 4 Jan 2021 13:01:23 +0200
A new species of Oomyzus Rondani (Hymenoptera, Eulophidae) reared from the pupae of Coccinella septempunctata (Coleoptera, Coccinellidae) in China https://zookeys.pensoft.net/article/53175/ ZooKeys 953: 49-60

DOI: 10.3897/zookeys.953.53175

Authors: Hai-Tian Song, Ming-Hui Fei, Bao-Ping Li, Chao-Dong Zhu, Huan-Xi Cao

Abstract: Oomyzus spiraculus Song, Fei & Cao sp. nov. (Hymenoptera, Eulophidae) is described and illustrated as a gregarious larval-pupal endoparasitoid of Coccinella septempunctata L. (Coleoptera, Coccinellidae). Differentiation between O. spiraculus and its similar species is discussed and a key to differentiate the female and male of these species is provided. DNA barcodes of O. spiraculus and O. scaposus are analyzed and compared.

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Research Article Mon, 27 Jul 2020 18:51:30 +0300
A new species of Oomyzus Rondani (Hymenoptera, Eulophidae) and first record of O. gallerucae (Fonscolombe) from China, with a key to Chinese species https://zookeys.pensoft.net/article/48795/ ZooKeys 950: 41-49

DOI: 10.3897/zookeys.950.48795

Authors: Wen-Jian Li, Cheng-De Li

Abstract: Oomyzus flavotibialis sp. nov. is described from Liaoning and Shandong provinces, China. Oomyzus gallerucae (Fonscolombe) is reported for the first time from China. A key to Chinese species of Oomyzus is provided.

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Research Article Mon, 20 Jul 2020 01:36:33 +0300
First report on the gall wasp Ophelimus near migdanorum (Hymenoptera, Eulophidae) and its parasitoid Closterocerus chamaeleon (Hymenoptera, Eulophidae) in Eucalyptus globulus in Bogotá, Colombia https://zookeys.pensoft.net/article/39213/ ZooKeys 902: 151-156

DOI: 10.3897/zookeys.902.39213

Authors: Olga Pinzón-Florián

Abstract: Ophelimus near migdanorum, a foliage gall wasp-inducer of Eucalyptus, is recorded for the first time in Colombia, infesting both mature ornamental trees of Eucalyptus globulus (Labill.) and monoculture plantations in the periurban forest in the city of Bogotá. The parasitoid Closterocerus chamaeleon was also emerged from the galled foliage. The spread of this pest and its parasitoid in other Eucalyptus species planted in Colombia has not been evaluated.

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Short Communication Mon, 13 Jan 2020 15:39:20 +0200
Parasitic wasps related to Prays oleae (Bernard, 1788) (Lepidoptera, Praydidae) in olive orchards in Greece https://zookeys.pensoft.net/article/25402/ ZooKeys 773: 143-154

DOI: 10.3897/zookeys.773.25402

Authors: Eleftherios Alissandrakis, Panagiota Psirofonia, Nickolas G. Kavallieratos, Saša S. Stanković, Vladimir Žikić

Abstract: The olive moth, Prays oleae (Bernard, 1788) (Lepidoptera: Praydidae) is categorised among the most devastating insect pests of olives, whose anthophagous and carpophagous generations can cause yield loss up to 581 and 846 kg of fruit per ha, respectively. In this study, results of the captured parasitoids in olive tree (Olea europaea Linnaeus, 1753) orchards, or infested olive plant material in Crete, Greece, is presented. Five of the six identified species captured in trap devices are related to P. oleae, i.e., Chelonus elaeaphilus Silvestri, 1908, Chelonus pellucens (Nees, 1816), Apanteles xanthostigma (Haliday, 1834), Diadegma armillatum (Gravenhorst, 1829), and Exochus lentipes Gravenhorst, 1829. The species Eupelmus urozonus Dalman, 1820 and Pnigalio mediterraneus Ferrière & Delucchi, 1957 were reared from infested P. oleae leaves. Chelonus pellucens is reported for the first time from Greece. According to the international literature, 59 hymenopterous and dipterous parasitoid species are associated with P. oleae in Europe.

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Research Article Mon, 9 Jul 2018 16:41:22 +0300
Description of a new species of Euderus Haliday from the southeastern United States (Hymenoptera, Chalcidoidea, Eulophidae): the crypt-keeper wasp https://zookeys.pensoft.net/article/11117/ ZooKeys 645: 37-49

DOI: 10.3897/zookeys.645.11117

Authors: Scott P. Egan, Kelly L. Weinersmith, Sean Liu, Ryan D. Ridenbaugh, Y. Miles Zhang, Andrew A. Forbes

Abstract: A new species of the genus Euderus Haliday, Euderus set sp. n., is described and illustrated from the southeastern United States, where it parasitizes the crypt gall wasp, Bassettia pallida Ashmead, 1896, on live oaks in the genus Quercus (subsection Virentes). This is the 1st species of the genus reported from the southeastern United States to parasitize cynipid gall wasps and the 3rd species of the genus reported to attack cynipids in North America. Modified sections of the identification keys to subgenera and species of Euderus (Yoshimoto, 1971) are included to integrate the new species.

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Short Communication Thu, 12 Jan 2017 22:38:53 +0200
A geographic distribution database of the Neotropical cassava whitefly complex (Hemiptera, Aleyrodidae) and their associated parasitoids and hyperparasitoids (Hymenoptera) https://zookeys.pensoft.net/article/6193/ ZooKeys 545: 75-87

DOI: 10.3897/zookeys.545.6193

Authors: Aymer Andrés Vásquez-Ordóñez, Nicolas А. Hazzi, David Escobar-Prieto, Dario Paz-Jojoa, Soroush Parsa

Abstract: Whiteflies (Hemiptera, Aleyrodidae) are represented by more than 1,500 herbivorous species around the world. Some of them are notorious pests of cassava (Manihot esculenta), a primary food crop in the tropics. Particularly destructive is a complex of Neotropical cassava whiteflies whose distribution remains restricted to their native range. Despite their importance, neither their distribution, nor that of their associated parasitoids, is well documented. This paper therefore reports observational and specimen-based occurrence records of Neotropical cassava whiteflies and their associated parasitoids and hyperparasitoids. The dataset consists of 1,311 distribution records documented by the International Center for Tropical Agriculture (CIAT) between 1975 and 2012. The specimens are held at CIAT’s Arthropod Reference Collection (CIATARC, Cali, Colombia). Eleven species of whiteflies, 14 species of parasitoids and one species of hyperparasitoids are reported. Approximately 66% of the whitefly records belong to Aleurotrachelus socialis and 16% to Bemisia tuberculata. The parasitoids with most records are Encarsia hispida, Amitus macgowni and E. bellottii for A. socialis; and E. sophia for B. tuberculata. The complete dataset is available in Darwin Core Archive format via the Global Biodiversity Information Facility (GBIF).

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Data Paper Mon, 14 Dec 2015 04:23:49 +0200
First record of Closterocerus chamaeleon, parasitoid of the Eucalyptus Gall Wasp Ophelimus maskelli (Hymenoptera, Chalcidoidea, Eulophidae), in the New World https://zookeys.pensoft.net/article/5320/ ZooKeys 504: 149-152

DOI: 10.3897/zookeys.504.9728

Authors: Roger A. Burks, Jason L. Mottern, Nicole G. Pownall, Rebeccah Waterworth, Timothy D. Paine

Abstract: The uniparental parasitoid Closterocerus chamaeleon (Girault) is discovered to be fortuitously present on a population of the invasive Eucalyptus Gall Wasp Ophelimus maskelli (Ashmead) in Riverside, California. This is the first report from the New World of C. chamaeleon, which has proven to be a highly effective natural enemy of O. maskelli in the Mediterranean Basin. The taxonomy and identification of C. chamaeleon is discussed.

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Short Communication Tue, 19 May 2015 00:00:00 +0300
Integrative taxonomy of New World Euplectrus Westwood (Hymenoptera, Eulophidae), with focus on 55 new species from Area de Conservación Guanacaste, northwestern Costa Rica https://zookeys.pensoft.net/article/4835/ ZooKeys 485: 1-236

DOI: 10.3897/zookeys.485.9124

Authors: Christer Hansson, M. Alex Smith, Daniel H. Janzen, Winnie Hallwachs

Abstract: 90 species of Euplectrus are treated: 55 newly described, all from Area de Conservación Guanacaste (ACG), and 35 previously described species, of which 20 occur in ACG. Three of the previously described species (E. brasiliensis Ashmead, E. hircinus (Say), E. ronnai (Brèthes)) have unknown status, owing to missing or severely damaged type material. The new species, all authored by C. Hansson, are: Euplectrus alejandrovalerioi, E. alexsmithi, E. alvarowillei, E. andybennetti, E. andydeansi, E. annettewalkerae, E. billbrowni, E. bobwhartoni, E. carlosarmientoi, E. carlrettenmeyeri, E. charlesmicheneri, E. charlesporteri, E. chrisdarlingi, E. chrisgrinteri, E. corriemoreauae, E. daveroubiki, E. davesmithi, E. davidwahli, E. dianariasae, E. donquickei, E. eowilsoni, E. garygibsoni, E. gavinbroadi, E. gerarddelvarei, E. henrytownesi, E. howelldalyi, E. hugokonsi, E. iangauldi, E. jacklonginoi, E. jesusugaldei, E. jimwhitfieldi, E. jjrodriguezae, E. johnheratyi, E. johnlasallei, E. johnnoyesi, E. josefernandezi, E. lubomirmasneri, E. markshawi, E. mikegatesi, E. mikeschauffi, E. mikesharkeyi, E. ninazitaniae, E. pammitchellae, E. paulhansoni, E. paulheberti, E. paulhurdi, E. philwardi, E. robbinthorpi, E. ronaldzunigai, E. roysnellingi, E. scottshawi, E. sondrawardae, E. sydneycameronae, E. victoriapookae, E. wonyoungchoi. The species are described or redescribed, and thoroughly and uniformly illustrated, and included in two identification keys, one for females and one for males. Lectotypes are designated for eight species: Euplectrus catocalae Howard (♂), E. junctus Gahan (♀), E. leucotrophis Howard (♂), E. marginatus Ashmead (♀), E. pachyscaphus Girault (♀), E. platyhypenae Howard (♂), E. semimarginatus Girault (♀), Heteroscapus ronnai Brèthes (♂). One synonym is established: Euplectrus walteri Schauff is a junior synonym of E. testaceipes (Cameron). Brief image notes and host records are provided on the natural history of the wasps as well as the details of their morphology. Hosts are known for 74 Euplectrus species.

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Monograph Tue, 10 Mar 2015 00:00:00 +0200
Morphological and karyotypic differences within and among populations of Radopholus similis https://zookeys.pensoft.net/article/4137/ ZooKeys 444: 69-93

DOI: 10.3897/zookeys.444.8186

Authors: Chunling Xu, Yun Li, Hui Xie, Xin Huang, Wen-Jia Wu, Lu Yu, Dong-Wei Wang

Abstract: Twenty populations of Radopholus similis from three countries and different hosts (19 populations from ornamental plants and one population from ginger) were compared using morphological characters, morphometrics and karyotype between progeny from both single females and 30 females of each population. Morphological diversity existed in and among the populations, even within the progeny nematodes from single nematodes compared to that of 30 females. The labial disc shape, the number of head annuli, the terminated position of lateral lips, the number of genital papillae before cloacal apertures and female and male tail terminal shape showed variation. In addition, genital papillae arranged in a double row before cloacal apertures was first found in two ornamental populations. The karyotype of all the 20 populations was n = 5. Combining our results and previous studies, we support that R. citrophilus is a synonym of R. similis, and that it is not possible to distinguish physiological races or pathotypes of R. similis according to morphological characters or karyotype.

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Research Article Tue, 7 Oct 2014 00:00:00 +0300
A new species of Zagrammosoma Ashmead (Hymenoptera, Eulophidae) from Qinghai Province, China https://zookeys.pensoft.net/article/3875/ ZooKeys 417: 45-55

DOI: 10.3897/zookeys.417.7464

Authors: Huan-Xi Cao, John LaSalle, Chao-Dong Zhu

Abstract: The new species Zagrammosoma dulanense Cao & Zhu, sp. n., from Qinghai Province, China, is described and illustrated. All type specimens were reared from the pupae of Micrurapteryx sophorivora Kuznetzov & Tristan (Lepidoptera: Gracillariidae), a leafmining moth attacking the plant Thermopsis lanceolata R. Br. (Fabaceae). A key to the three known Asian species of Zagrammosoma is provided. All specimens are deposited in the Insect Collection, the Institute of Zoology, Chinese Academy of Sciences, Beijing, China.

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Research Article Thu, 19 Jun 2014 00:00:00 +0300
A new species of Tamarixia Mercet (Hymenoptera, Eulophidae), parasitoid of Trioza aguacate Hollis & Martin (Hemiptera, Triozidae) in Mexico https://zookeys.pensoft.net/article/3185/ ZooKeys 368: 23-35

DOI: 10.3897/zookeys.368.6468

Authors: Zoya Yefremova, Graciela González-Santarosa, Refugio Refugio Lomeli-Flores, Néstor Bautista-Martínez

Abstract: Tamarixia aguacatensis Yefremova, sp. n. (Hymenoptera: Eulophidae: Tetrastichinae) is described from Mexico as a parasitoid of the avocado psyllid, Trioza aguacate Hollis & Martin (Hemiptera: Triozidae). Trioza aguacate is a serious pest of avocado, Persea americana Miller. A key to the species of Tamarixia Mercet in Mexico is given.

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Research Article Tue, 7 Jan 2014 00:00:00 +0200
Revision of the European species of Omphale Haliday (Hymenoptera, Chalcidoidea, Eulophidae) https://zookeys.pensoft.net/article/3223/ ZooKeys 232: 1-157

DOI: 10.3897/zookeys.232.3625

Authors: Christer Hansson, Ekaterina Shevtsova

Abstract: The European species of Omphale Haliday (Eulophidae: Entedoninae) are revised. The revision includes 37 species, of which eleven are newly described and the remaining 26 species are redescribed. The species are classified into six species groups, with six unplaced species. All species are fully diagnosed and thoroughly illustrated. Identification keys are provided for females and males. Two new morphological features to aid classification and identification are introduced: male genitalia and wing interference patterns (WIPs). The former has been used successfully in the classification of New World Omphale and the latter is used for the first time in a taxonomic revision. Male genitalia in Omphale have considerable interspecific variation, an unusual trait among chalcidoid Hymenoptera, and are demonstrated to be useful for classification of species and species-groups, and they also possess the only autapomorphy for Omphale. WIPs are useful to help separate some species, but cannot be used to define either the genus or species groups. Distributional data are compiled for each species and suggest a pan-european distribution for most species. Gall-midges are the known hosts for 14 species, and the absence of host overlap between species suggests that host specialization is a driving force for speciation. Several Omphale species are known only from females, or have a strong female biased sex ratio, suggesting thelytokous development. Apart from the 37 species included in this revision, the status for nine additional species (names) in species group aetius remain unsolved. For nomenclatorial stability, a neotype is designated for Eulophus lugens Nees (= Omphale lugens (Nees)). Elachestus obscurus Förster and Derostenus sulciscuta Thomson are transferred from Holcopelte to Omphale comb.n. Derostenus radialis Thomson and Achrysocharella americana Girault are synonymized with Omphale theana (Walker), and O. teresis Askew is synonymized with O. phruron (Walker), syn. n. The status of genus Pholema Graham is revised as it is removed from synonymy with Omphale and instead synonymized with Neochrysocharis Kurdjumov, syn. n., and the type species for Pholema, P. microstoma Graham, is transferred to Neochrysocharis, comb. n. Eugerium orbatum Szelényi, previously transferred to Omphale, is synonymized with Asecodes congruens (Nees), syn. n.

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Research Article Thu, 25 Oct 2012 00:00:00 +0300
The preimaginal stages of Pnigalio gyamiensis Myartseva & Kurashev, 1990 (Hymenoptera, Eulophidae), a parasitoid associated with Chrysoesthia sexguttella (Thunberg) (Lepidoptera, Gelechiidae) https://zookeys.pensoft.net/article/2974/ ZooKeys 214: 75-89

DOI: 10.3897/zookeys.214.3266

Authors: Еkaterina Yegorenkova, Zoya Yefremova

Abstract: The larval instars of Pnigalio gyamiensis Myartseva and Kurashev are described in detail for the first time. This species is a larval-pupal ectoparasitoid of Chrysoesthia sexguttella (Thunberg) (Lepidoptera, Gelechiidae), which forms leaf mines in the plant Chenopodium album L. (Caryophyllales: Amaranthaceae). The female of P. gyamiensis lays a single egg on the skin of the host larva or nearby it, without any significant preference for a particular variant. The presence of long hairs on its body provides the newly-hatched first larval instar with high mobility. Some peculiarities in this parasitoid-host relationship are described.

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Research Article Tue, 7 Aug 2012 00:00:00 +0300
First report of Melittobia australica Girault in Europe and new record of M. acasta (Walker) for Italy https://zookeys.pensoft.net/article/2661/ ZooKeys 181: 45-51

DOI: 10.3897/zookeys.181.2752

Authors: Antonino Cusumano, Jorge Gonzalez, Stefano Colazza, S. Bradleigh Vinson

Abstract: Melittobia acasta and M. australica are newly recorded from Sicily, Italy, and the second species is reported in Europe for the first time. A short historical background about Melittobia parasitoid wasps, their hosts, and distribution, with emphasis in those two species is presented together with illustrations to facilitate their identification. Brief discussion about the presence and possible distribution of the species in Sicily is also included.

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Research Article Fri, 6 Apr 2012 00:00:00 +0300
Achrysocharoides Girault (Hymenoptera, Eulophidae) new to tropical America, with eight new species https://zookeys.pensoft.net/article/2477/ ZooKeys 173: 79-108

DOI: 10.3897/zookeys.173.2653

Authors: Christer Hansson

Abstract: The genus Achrysocharoides Girault is here reported for the first time from tropical America. Included are ten species, eight newly described: A. asperulus, A. callisetosus, A. cuspidatus, A. foveatus, A. infuscus, A. mediocarinatus, A. purpureus, A. sulcatus, and two already known: A. ecuadorensis (Hansson) and A. gliricidiae (Hansson & Cave). All species are included in an identification key, diagnosed, described and illustrated. Only one of the species, A. gliricidiae, has a host record, an endoparasitoid in a leafmining Gracillariidae (Lepidoptera) on Gliricidia sepium (Fabaceae), thus conforming to the biology of extralimital Achrysocharoides species. The genus Kratoysma Bouček is here established as a junior synonym of Achrysocharoides, and the following species previously in Kratoysma are here recombined to Achrysocharoides: K. citri Bouček, K. ecuadorensis Hansson, K. gliricidiae Hansson & Cave, K. longifacies Hansson, K. nepalensis Hansson, Derostenus usticrus Erdös.

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Research Article Fri, 2 Mar 2012 00:00:00 +0200
Species recognition through wing interference patterns (WIPs) in Achrysocharoides Girault (Hymenoptera, Eulophidae) including two new species https://zookeys.pensoft.net/article/2219/ ZooKeys 154: 9-30

DOI: 10.3897/zookeys.154.2158

Authors: Ekaterina Shevtsova, Christer Hansson

Abstract: Wing interference patterns (WIPs) are shown to be an important tool for species recognition in the genus Achrysocharoides Girault (Hymenoptera: Eulophidae). This is demonstrated by combining information from two previously published papers, comprising two cases of cryptic species, and by new material including the description of two new species, A. maieri and A. serotinae from North America. The cryptic species were initially separated through their distinct male WIPs. Subsequent analyses of the external morphology uncovered additional morphological differences supporting the original findings through WIPs, and biological data further strengthened the identity of these species. The new species described here also differ in their WIPs but the WIPs are similar in both sexes. Thus they provide a strong link between male and female and demonstrate that WIPs can also be useful for species recognition when the sexes are otherwise difficult to associate. Both new species are from Connecticut, USA, and were reared from Phyllonorycter propinquinella (Braun) (Lepidoptera: Gracillariidae) on black cherry (Prunus serotina); A. maieri has also been reared from Ph. nr crataegella on pin cherry (P. pensylvanica). To facilitate the identification of the new species they are included in a previously published key to North American species of Achrysocharoides. As a supplement to colourful WIPs we also demonstrate that grey scale images of uncoated wings from scanning electron microscopy can be used for visualization of the thickness distribution pattern in wing membranes.

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Research Article Mon, 12 Dec 2011 00:00:00 +0200
Entedoninae wasps (Hymenoptera, Chalcidoidea, Eulophidae) associated with ants (Hymenoptera, Formicidae) in tropical America, with new species and notes on their biology https://zookeys.pensoft.net/article/2805/ ZooKeys 134: 62-82

DOI: 10.3897/zookeys.134.1653

Authors: Christer Hansson, Jean-Paul Lachaud, Gabriela Pérez-Lachaud

Abstract: Three new species of Eulophidae associated, or presumed to be associated with ants are described: two species of Horismenus Walker and one species of Microdonophagus Schauff. Information on the biology is also included. The two Horismenus species are from Chiapas, Mexico. Horismenus myrmecophagus sp. n. is known only from females and is a gregarious endoparasitoid in larvae of the weaver ant Camponotus sp. ca. textor. The parasitoids pupate inside the host larva, and an average of 6.7 individuals develops per host. This is the second time a species of genus Horismenus is found parasitizing the brood of a formicine ant of genus Camponotus. Horismenus microdonophagus sp. n. is described from both males and females, and is a gregarious endoparasitoid attacking the larvae of Microdon sp. (Diptera: Syrphidae), a predator on ant brood found in nests of Camponotus sp. ca. textor. The new species of Microdonophagus, M. tertius, is from Costa Rica, and known only from the female. Nothing is known about its biology but since another species in same genus, M. woodleyi Schauff, is associated with ants through its host, Microdon larva (with same biology as H. microdonophagus), it is possible that also M. tertius has this association. A new distributional record for M. woodleyi is also reported, extending its distribution from Panama and Colombia to Brazil.

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Research Article Thu, 6 Oct 2011 00:00:00 +0300
Paracrias pluteus (Hymenoptera, Eulophidae) in Brazil: new distribution and host records, and with a new host group for Paracrias https://zookeys.pensoft.net/article/2455/ ZooKeys 102: 77-82

DOI: 10.3897/zookeys.102.1343

Authors: Tiago Pikart, Gabriely Souza, Valmir Costa, Christer Hansson, José Zanuncio

Abstract: Bruchines damage agricultural crops and trees, reducing the quantity and quality of the seeds. The aim of this study is to record, for the first time, Paracrias pluteus as a parasitoid on the immature stages of Sennius spodiogaster and S. cupreatus on seeds of Melanoxylon brauna in Teixeiras, Minas Gerais State, Brazil. Paracrias pluteus is a parasitoid without previous host records and known only from Costa Rica. Specimens obtained in this study add to knowledge of the biology of Paracrias species with a new host group (Chrysomelidae: Bruchinae), and the first host record and a new distribution for P. pluteus.

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Short Communication Thu, 2 Jun 2011 00:00:00 +0300