ZootaxaPub Date : 2026-06-23DOI: 10.11646/zootaxa.5837.2.7
Q I Kou, Gary C B Poore, Xinzheng Li
{"title":"<b>Redescription and phylogenetic position of the poorly known ghost shrimp species, <i>Praedatrypaea modesta</i> (De Man, 1905) (Decapoda: Axiidea: Callianassidae)</b>.","authors":"Q I Kou, Gary C B Poore, Xinzheng Li","doi":"10.11646/zootaxa.5837.2.7","DOIUrl":"10.11646/zootaxa.5837.2.7","url":null,"abstract":"<p><p>A poorly known callianassid ghost shrimp species, <i>Praedatrypaea modesta</i> (De Man, 1905), is redescribed and illustrated based on new material recently collected off the south coast of Hainan Island, northern continental shelf of the South China Sea. Genetic data were obtained and compared with other six congeners. With the inclusion of this species, the monophyly of <i>Praedatrypaea</i> Poore, Dworschak, Robles, Mantelatto & Felder, 2019 is reevaluated. The inferred phylogenetic trees, based on two matrices (4-gene and 21-gene), both support the monophyly of this genus and its placement as sister taxon to all other genera of Callianassidae Dana, 1852.</p>","PeriodicalId":24072,"journal":{"name":"Zootaxa","volume":"5837 2","pages":"341-355"},"PeriodicalIF":0.9,"publicationDate":"2026-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148399451","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ZootaxaPub Date : 2026-06-23DOI: 10.11646/zootaxa.5837.2.9
Mikhail M Tribun, Natalia A Lebedeva
{"title":"<b>COX1 gene as a promising tool for barcoding different species of <i>Euplotes</i> (Ciliophora: Euplotidae)</b>.","authors":"Mikhail M Tribun, Natalia A Lebedeva","doi":"10.11646/zootaxa.5837.2.9","DOIUrl":"10.11646/zootaxa.5837.2.9","url":null,"abstract":"<p><p><i>Euplotes</i> Ehrenberg, 1830 is a highly diversified genus of ciliates comprising over 160 species. Their identification is problematic at both the morphological and the molecular level. Here, we used an integrative approach to describe four <i>Euplotes</i> species: <i>E. vannus</i>, <i>E. aediculatus</i>, <i>E. sinicus</i> and <i>E. octocarinatus</i>. We obtained 9 new sequences: 4 sequences of the nuclear small-subunit ribosomal RNA gene and 5 sequences of the mitochondrial cytochrome <i>c</i> oxidase 1 (COX1) gene. For two of these species (<i>E. octocarinatus</i> and <i>E. sinicus)</i> the COX1 gene sequences were obtained for the first time. The topology of phylogenetic trees based on the two marker genes was the same for most of the clades. The COX1 gene showed a good resolution at the intraspecific level. This finding indicates that the COX1 gene is a promising tool for barcoding different species of <i>Euplotes</i>.</p>","PeriodicalId":24072,"journal":{"name":"Zootaxa","volume":"5837 2","pages":"365-378"},"PeriodicalIF":0.9,"publicationDate":"2026-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148399461","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ZootaxaPub Date : 2026-06-23DOI: 10.11646/zootaxa.5837.2.12
Xueli Feng, Zhengxue Zhao, Xiaohui Song, Jie Xiao
{"title":"<b>A new species of the subterranean genus <i>Zhijinaphaenops</i> Uéno, 2002, from a Karst Cave in Guizhou, China (Coleoptera: Carabidae: Trechini)</b>.","authors":"Xueli Feng, Zhengxue Zhao, Xiaohui Song, Jie Xiao","doi":"10.11646/zootaxa.5837.2.12","DOIUrl":"https://doi.org/10.11646/zootaxa.5837.2.12","url":null,"abstract":"<p><p>A new eyeless species, <i>Zhijinaphaenops lianhuaensis</i><b>sp. nov.</b>, has been discovered within Lianhua Cave, Puding County, Anshun City, Guizhou Province. This new species was discovered in the same cave where the paratype specimens of <i>Z. pubescens</i> Uéno & Ran, 2002 were collected earlier. However, comparative examination reveals distinct differences between the two species with respect to pronotum morphology, male genitalia, and elytral size.</p>","PeriodicalId":24072,"journal":{"name":"Zootaxa","volume":"5837 2","pages":"394-400"},"PeriodicalIF":0.9,"publicationDate":"2026-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148399510","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"<b>Two new species of <i>Coecobrya</i> Yosii (Collembola: Entomobryidae) from Yunnan, China</b>.","authors":"Yi-Fan Sun, Jin-Cheng Lu, Zhi-Hong Zhan, Feng Zhang","doi":"10.11646/zootaxa.5837.2.2","DOIUrl":"10.11646/zootaxa.5837.2.2","url":null,"abstract":"<p><p>This study describes two new species of <i>Coecobrya</i> Yosii, 1956 (Collembola: Entomobryidae) from the Nangunhe National Nature Reserve in Yunnan, China: <i>Coecobrya tianfucavica</i><b>sp. nov.</b>, collected from bat guano inside a cave, is distinguished by the presence of macrochaeta m2i on abdominal segment I, only three macrochaetae each on abdominal segments II and III, and a highly reduced chaetotaxy on the posterior side of the ventral tube; and <i>Coecobrya pentatriacra</i><b>sp. nov.</b>, collected from forest litter and distinguished by its orange body markings and a unique chaetotaxy pattern of five central and three lateral macrochaetae on the tergite of abdominal segment IV. Both species belong to the <i>tenebricosa</i>-group. Molecular phylogenetic analysis based on the mitochondrial COI gene supports the independent status of both new species. The minimum genetic distances between each of them and their closely related species exceed the reported barcoding gap threshold for known species in Entomobryidae. This study provides detailed morphological descriptions, comparative analyses with similar species, and a phylogenetic tree and K2P genetic distance analysis based on DNA barcode data, thereby contributing to a better understanding of <i>Coecobrya</i> diversity in southwestern China.</p>","PeriodicalId":24072,"journal":{"name":"Zootaxa","volume":"5837 2","pages":"240-256"},"PeriodicalIF":0.9,"publicationDate":"2026-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148399416","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ZootaxaPub Date : 2026-06-23DOI: 10.11646/zootaxa.5837.2.4
Cecilia Silva Ribeiro Sobral, Amanda DE Serpa Nascimento, Sandra Francisca Marçal, Alessandra Angélica DE Pádua Bueno
{"title":"<b>First description of the genus <i>Hyalella</i> Smith, 1874 (Crustacea, Amphipoda, Hyalellidae) for the state of Mato Grosso and the Central-Western region of Brazil</b>.","authors":"Cecilia Silva Ribeiro Sobral, Amanda DE Serpa Nascimento, Sandra Francisca Marçal, Alessandra Angélica DE Pádua Bueno","doi":"10.11646/zootaxa.5837.2.4","DOIUrl":"10.11646/zootaxa.5837.2.4","url":null,"abstract":"<p><p>This study describes the first species of <i>Hyalella</i> from the state of Mato Grosso, Central-West Brazil, based on material collected from the Salobra Stream (Córrego Salobra) at Recanto Ecológico da Lagoa Azul, Bom Jardim District, Nobres, Mato Grosso. <i>Hyalella nobrensis</i><b>sp. nov.</b> is characterized by the presence of three serrate setae of a new type with an accessory seta on the inner face of the propodus of gnathopod 1, the absence of a curved seta on the inner ramus of uropod 1, simple setae on the inner margin of maxilla 2, one plumose seta on the dactylus of gnathopods 1 and 2, and a telson apically rounded with two cuspidate setae and four lateral plumose setae. This study raises the number of described <i>Hyalella</i> species in Brazil to 52 and expands our understanding of <i>Hyalella</i> diversity in additional regions of this continental-scale country.</p>","PeriodicalId":24072,"journal":{"name":"Zootaxa","volume":"5837 2","pages":"289-308"},"PeriodicalIF":0.9,"publicationDate":"2026-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148399506","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ZootaxaPub Date : 2026-06-23DOI: 10.11646/zootaxa.5837.2.8
Manuel Ayón-Parente, Ingo S Wehrtmann
{"title":"<b>New species of hermit crab of the genus <i>Paguristes</i> (Decapoda: Paguroidea: Diogenidae) from Pacific Costa Rica, Central America</b>.","authors":"Manuel Ayón-Parente, Ingo S Wehrtmann","doi":"10.11646/zootaxa.5837.2.8","DOIUrl":"10.11646/zootaxa.5837.2.8","url":null,"abstract":"<p><p>A new hermit crab species, <i>Paguristes costaricaensis</i> <b>sp. nov.</b>, is described and illustrated in detail. This is the sixteenth species of <i>Paguristes</i> reported from the Eastern Pacific and the fourth species from the Pacific coast of Costa Rica. <i>Paguristes costaricaensis</i><b>sp. nov.</b> has major morphological similarities with <i>P</i>. <i>fecundus</i> Faxon, 1893, but they can be distinguished easily by the absence of spines on the dorsal margin of the propodus and carpus of pereopod 4 in <i>P</i>. <i>costaricaensis</i> <b>sp. nov.</b> and armed with three and three spines, respectively, in <i>P</i>. <i>fecundus</i>. A revised key to the 16 presently known species of <i>Paguristes</i> of the Eastern Tropical Pacific is provided.</p>","PeriodicalId":24072,"journal":{"name":"Zootaxa","volume":"5837 2","pages":"356-364"},"PeriodicalIF":0.9,"publicationDate":"2026-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148399497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ZootaxaPub Date : 2026-06-23DOI: 10.11646/zootaxa.5837.2.3
Shunsuke Morishita, Kyohei Watanabe
{"title":"<b>Review of the subgenus <i>Ceratopius</i> Clément, 1927 of the genus <i>Metopius</i> Panzer (Hymenoptera: Ichneumonidae: Metopiinae) from Japan</b>.","authors":"Shunsuke Morishita, Kyohei Watanabe","doi":"10.11646/zootaxa.5837.2.3","DOIUrl":"10.11646/zootaxa.5837.2.3","url":null,"abstract":"<p><p>Japanese species of the subgenus <i>Ceratopius</i> Clément of the genus <i>Metopius</i> Panzer are reviewed. Ten species are recognized in the Japanese fauna. The following five new species are described: <i>M.</i> (<i>C</i>.) <i>flavofacies</i> <b>sp. nov.</b>; <i>M.</i> (<i>C</i>.) <i>iris</i> <b>sp. nov.</b>; <i>M.</i> (<i>C</i>.) <i>minimus</i> <b>sp. nov.</b>; <i>M.</i> (<i>C.</i>) <i>splendens</i> <b>sp. nov.</b>; <i>M.</i> (<i>C.</i>) <i>violaceus</i> <b>sp. nov.</b> Taxonomic status of <i>M.</i> (<i>C</i>.) <i>dissectorius</i><i>pieli</i> Uchida, 1940 is changed from a subspecies of <i>M.</i> (<i>C</i>.) <i>citratus</i> (Geoffroy, 1785) to a separate species. <i>Metopius</i> (<i>C.</i>) <i>pieli</i> is newly recorded from Japan. <i>Metopius</i> (<i>C.</i>) <i>baibarensis</i> Uchida, 1930, <i>M.</i> (<i>C.</i>) <i>carinatus</i> Tolkanitz, 1985, <i>M.</i> (<i>C</i>.) <i>dissectorius</i><i>imperfectus</i> Uchida, 1930, <i>M.</i> (<i>C</i>.) <i>dissectorius</i><i>taiwanensis</i> Chiu, 1962, <i>M.</i> (<i>C</i>.) <i>dissectorius</i><i>trifasciatus</i> Uchida, 1930, and <i>M.</i> (<i>C.</i>) <i>elegans</i> Tolkanitz, 1985 are newly synonymised under <i>M.</i> (<i>C</i>.) <i>fuscipennis.</i> A key to Japanese species of this subgenus is provided.</p>","PeriodicalId":24072,"journal":{"name":"Zootaxa","volume":"5837 2","pages":"257-288"},"PeriodicalIF":0.9,"publicationDate":"2026-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148399433","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ZootaxaPub Date : 2026-06-23DOI: 10.11646/zootaxa.5837.2.11
Elliott Gordon, Dmitry Telnov
{"title":"<b>The first new species of <i>Pelecotoides</i> Laporte, 1833 (Coleoptera: Ripiphoridae) from the Greater Sunda Islands in a century</b>.","authors":"Elliott Gordon, Dmitry Telnov","doi":"10.11646/zootaxa.5837.2.11","DOIUrl":"https://doi.org/10.11646/zootaxa.5837.2.11","url":null,"abstract":"<p><p><i>Pelecotoides kadazandusun</i> <b>sp. nov.</b>, a new ripiphorid species from Malaysian Borneo, is described and illustrated. This represents the second species of <i>Pelecotoides</i> Laporte, 1833 documented from Borneo. We briefly discuss the Ripiphoridae Laporte, 1840 fauna of Borneo and present new records of <i>Micropelecotoides</i> Pic, 1910 from the island. A new combination is made for <i>Pelecotomoides nigrolateralis</i> var. <i>fulvonotata</i> Pic, 1924-<i>Pelecotoides nigrolateralis</i> ssp. <i>fulvonotatus</i> <b>comb. nov.</b></p>","PeriodicalId":24072,"journal":{"name":"Zootaxa","volume":"5837 2","pages":"387-393"},"PeriodicalIF":0.9,"publicationDate":"2026-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148399487","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ZootaxaPub Date : 2026-06-23DOI: 10.11646/zootaxa.5837.2.10
DO Xuan Dat, Khuat Dang Long, Lai Tien Dzung
{"title":"<b><i>Dolichogenidea glyphodes</i>, sp. nov. (Hymenoptera: Braconidae: Microgastrinae), a parasitoid of <i>Glyphodes caesalis</i> (Walker) (Lepidoptera: Crambidae)</b>.","authors":"DO Xuan Dat, Khuat Dang Long, Lai Tien Dzung","doi":"10.11646/zootaxa.5837.2.10","DOIUrl":"10.11646/zootaxa.5837.2.10","url":null,"abstract":"<p><p>One new species of the genus <i>Dolichogenidea</i> Viereck, 1911, <i>Dolichogenidea glyphodes</i> Long & Dat, <b>sp. nov.</b>, is described and fully illustrated based on series of specimens collected from gregarious cocoons of borers feeding on jackfruits, <i>Glyphodes caesalis</i> (Walker, 1859). The new species appears to be relatively specialized on their host species, parasitizing caterpillars of Crambidae infesting jackfruits (<i>Artocarpus</i> spp.).</p>","PeriodicalId":24072,"journal":{"name":"Zootaxa","volume":"5837 2","pages":"379-386"},"PeriodicalIF":0.9,"publicationDate":"2026-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148399317","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ZootaxaPub Date : 2026-06-22DOI: 10.11646/zootaxa.5837.1.9
Paweł Jałoszyński
{"title":"<b>A new species of the <i>Cephennodes taurus</i> group in Yaeyama Islands, Japan (Coleoptera: Staphylinidae: Scydmaeninae)</b>.","authors":"Paweł Jałoszyński","doi":"10.11646/zootaxa.5837.1.9","DOIUrl":"10.11646/zootaxa.5837.1.9","url":null,"abstract":"<p><p><i>Cephennodes</i> (s. str.) <i>pseudoakane</i><b>sp. nov.</b> is described, based on specimens collected in Ishigaki-jima and Iriomote-jima islands (Yaeyama Islands of the Ryukyus), Okinawa Prefecture, Japan. The new species belongs to the <i>C. taurus</i> group, so far represented by 14 species distributed in Japan, China, Taiwan and Vietnam. Three species of this group occur in the close vicinity of <i>C. pseudoakane</i>-<i>C. akane</i> Hoshina, 2020 (Taiwan), <i>C. maya</i> Hoshina, 2021 (Taiwan), and <i>C. yume</i> Hoshina, 2017 (Okinawa Island). Characters of these four highly similar species are illustrated and compared, including unique modifications of the frontal region in males. Key to males of all species belonging to the <i>C. taurus</i> group is given.</p>","PeriodicalId":24072,"journal":{"name":"Zootaxa","volume":"5837 1","pages":"171-178"},"PeriodicalIF":0.9,"publicationDate":"2026-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148398905","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}