ZootaxaPub Date : 2026-06-29DOI: 10.11646/zootaxa.5839.2.8
Alexandre C Ribeiro, Katiane M Ferreira, Fernando C Jerep
{"title":"<b>A new species of <i>Serrapinnus</i> (Characiformes: Characidae: Cheirodontinae) from the rio Manso drainage, upper rio Paraguai basin, Mato Grosso, Brazil</b>.","authors":"Alexandre C Ribeiro, Katiane M Ferreira, Fernando C Jerep","doi":"10.11646/zootaxa.5839.2.8","DOIUrl":"https://doi.org/10.11646/zootaxa.5839.2.8","url":null,"abstract":"<p><p>We describe <i>Serrapinnus mansoensis</i><b>sp. nov.</b>, a new species of Cheirodontinae from a headwater stream of the rio Manso basin, upper rio Paraguai drainage, Mato Grosso, Brazil. The species is immediately distinguished from all congeners by the absence of any dark melanophore-based markings in live specimens, with both the midlateral stripe and caudal peduncle spot inconspicuously evidenced in alcohol preserved specimens by the presence of scarce and scattered melanophores. It further differs by having 7-9 cusps on premaxillary teeth (vs. 4-5 in <i>S. microdon</i>, and <i>S. potiguar),</i> 36-39 scales in the longitudinal series (vs. ≤35 in <i>S. aster</i>, <i>S. calliurus</i>, <i>S. malabarbai</i>, <i>S. kriegi</i>, <i>S. micropterus</i>, <i>S. notomelas</i>, and <i>S. piaba</i>), incomplete lateral line (vs. complete in <i>S. heterodon</i>), and 16-18 ventral procurrent caudal-fin rays (vs. 11-13 in <i>S. zanatae</i>). The discovery of this species in a small, clear-water headwater highlights the still underestimated diversity and endemism in the upper Paraguai basin and reinforces the conservation priority of these highland aquatic systems.</p>","PeriodicalId":24072,"journal":{"name":"Zootaxa","volume":"5839 2","pages":"372-380"},"PeriodicalIF":0.9,"publicationDate":"2026-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148399678","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 : 2026-06-29DOI: 10.11646/zootaxa.5839.2.4
Matheus Bento, José Albertino Rafael
{"title":"<b>Taxonomic review of the genus <i>Lepidophloeus</i> Thomas, 1984 (Coleoptera, Cucujoidea, Laemophloeidae), with the first key to Neotropical genera of Laemophloeinae</b>.","authors":"Matheus Bento, José Albertino Rafael","doi":"10.11646/zootaxa.5839.2.4","DOIUrl":"https://doi.org/10.11646/zootaxa.5839.2.4","url":null,"abstract":"<p><p>In this paper, the lined flat bark beetle genus <i>Lepidophloeus</i> Thomas (Coleoptera: Laemophloeidae) is taxonomically revised based on the analysis of type and additional material. New morphological and distributional data provide the basis for the reinterpretation of the specific limits between <i>L. exquisitus</i> (Grouvelle) and <i>L. minusculus</i> (Grouvelle), confirming their status as valid species. The known distribution of <i>L. minusculus</i> is considerably expanded, supporting the first record of the genus in South America. In addition, the genus and species are circumscribed and illustrated in detail using compound light-microscopy and scanning electron microscopy. Illustrated keys to the species of <i>Lepidophloeus</i> and to the Neotropical genera of Laemophloeinae are provided.</p>","PeriodicalId":24072,"journal":{"name":"Zootaxa","volume":"5839 2","pages":"313-331"},"PeriodicalIF":0.9,"publicationDate":"2026-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148399684","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>A new species and additional records of <i>Domene</i> Fauvel, 1873 from China (Coleoptera: Staphylinidae: Paederinae)</b>.","authors":"Shi-Chao Tang, Wei-Hua Sun, Xian-Ting Wang, Zhong Peng","doi":"10.11646/zootaxa.5839.1.9","DOIUrl":"10.11646/zootaxa.5839.1.9","url":null,"abstract":"<p><p>Material of the genus <i>Domene</i> Fauvel, 1873 from the Chinese provinces of Inner Mongolia, Jilin, Zhejiang, Anhui, Hubei, Hunan, Guangdong, Guangxi, Chongqing, Sichuan, Guizhou, and Yunnan is examined. Eleven species are identified, ten of them were described previously, one is newly described: <i>D</i>. <i>assingi</i> Tang & Peng, <b>sp. nov.</b> (Guangdong: Nanling). The female sexual characters of <i>D</i>. <i>jini</i> Peng & Li, 2017 are described and illustrated for the first time. New records are provided for <i>D</i>. <i>cultrata</i> Feldmann & Peng, 2014 from Chongqing Municipality, <i>D. hui</i> Lin & Peng, 2021 from Fujian Province, <i>D</i>. <i>hybrida</i> Assing, 2021 from Hunan Province, and <i>D</i>. <i>procera</i> Eppelsheim, 1886 from Inner Mongolia Autonomous Region and Jilin Province. A map of the <i>Domene</i> species from Chinese mainland is provided. Including the new taxon, 28 <i>Domene</i> species are currently known from China.</p>","PeriodicalId":24072,"journal":{"name":"Zootaxa","volume":"5839 1","pages":"177-184"},"PeriodicalIF":0.9,"publicationDate":"2026-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148399563","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 : 2026-06-26DOI: 10.11646/zootaxa.5839.1.10
Hee-Seung Hwang, Greg W Rouse
{"title":"<b>A new species of <i>Mesacturoides</i> Manning, 1978 (Stomatopoda: Takuidae) from the Arabian Sea</b>.","authors":"Hee-Seung Hwang, Greg W Rouse","doi":"10.11646/zootaxa.5839.1.10","DOIUrl":"10.11646/zootaxa.5839.1.10","url":null,"abstract":"<p><p>This study describes <i>Mesacturoides dewysea</i><b>sp. nov.</b>, a new species of takuid mantis shrimp discovered in the coastal waters of Oman. The new species is characterized by a distinctive combination of morphological features, including numerous telson spiniform denticles (22-38 submedian and 8-27 intermediate denticles), a completely ovate telson median boss, and a large uropodal endopod bearing a dense patch of setae on the anterior margin of the ventral surface. Among the three known species of <i>Mesacturoides</i>, <i>M. dewysea</i><b>sp. nov.</b> is morphologically most similar to <i>M. fimbriatus</i> (Lenz, 1905), sharing the aforementioned combination of characters and exhibiting an overlapping range in telson spiniform denticle number associated with growth. However, careful examination of specimens of comparable size demonstrates that the new species is consistently distinguished by the complete absence of accessory median carinae on the telson. As a result, the genus <i>Mesacturoides</i> currently comprises four species, including the new species described herein. Additionally, a key to the known species of the genus is provided.</p>","PeriodicalId":24072,"journal":{"name":"Zootaxa","volume":"5839 1","pages":"185-193"},"PeriodicalIF":0.9,"publicationDate":"2026-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148399690","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 : 2026-06-26DOI: 10.11646/zootaxa.5839.1.8
Luis Manuel Hernández-García, Ruana Aretha Farias Santiago Beckman, Samuel Wooster James, Sandriel Costa Sousa, Francisco Limeira-DE-Oliveira, Guillaume Xavier Rousseau
{"title":"<b>New species of earthworms from the genera <i>Holoscolex</i> and <i>Glossodrilus</i> (Crassiclitellata) in the Eastern Amazon</b>.","authors":"Luis Manuel Hernández-García, Ruana Aretha Farias Santiago Beckman, Samuel Wooster James, Sandriel Costa Sousa, Francisco Limeira-DE-Oliveira, Guillaume Xavier Rousseau","doi":"10.11646/zootaxa.5839.1.8","DOIUrl":"10.11646/zootaxa.5839.1.8","url":null,"abstract":"<p><p>We describe two new species of the earthworm genera <i>Holoscolex</i> and <i>Glossodrilus</i> from the Gurupi Biological Reserve, Maranhão State, Brazil. This reserve represents one of the last wild refuges of the Belém Endemism Area, the most deforested and threatened region of the Brazilian Amazon. <i>Holoscolex contractilis</i><b>sp. nov</b>. belongs to a selected group of this genus characterized by intraclitellar atrial glands, and it is unique in having two pairs of spermathecae in segments 7 and 8, with atrial glands adjacent in 8 and 9, and free testes in segment 11. <i>Glossodrilus rubra</i><b>sp. nov</b>. remains among the <i>Glossodrilus</i> species with two pairs of spermathecae in segments 8 and 9, but differs from its congeners by the position of the spermathecal openings in <i>CD</i> line and aquadrangular body at tail.</p>","PeriodicalId":24072,"journal":{"name":"Zootaxa","volume":"5839 1","pages":"167-176"},"PeriodicalIF":0.9,"publicationDate":"2026-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148399693","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 : 2026-06-26DOI: 10.11646/zootaxa.5839.1.11
Emina Kijevcanin, Pinar Gülle, Seyit Yuzuak
{"title":"<b>New records of the water mite family Arrenuridae (Acari: Hydrachnidia) from Türkiye, with the description of a new species</b>.","authors":"Emina Kijevcanin, Pinar Gülle, Seyit Yuzuak","doi":"10.11646/zootaxa.5839.1.11","DOIUrl":"https://doi.org/10.11646/zootaxa.5839.1.11","url":null,"abstract":"","PeriodicalId":24072,"journal":{"name":"Zootaxa","volume":"5839 1","pages":"194-199"},"PeriodicalIF":0.9,"publicationDate":"2026-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148399664","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 : 2026-06-26DOI: 10.11646/zootaxa.5839.1.3
Eric G Chapman, Melissa D Clarkson, Charles E Wright, Julian R Dupuis
{"title":"<b>The Silphinae (Staphylinidae) and Agyrtidae of Kentucky with an illustrated key to the fauna of eastern North America</b>.","authors":"Eric G Chapman, Melissa D Clarkson, Charles E Wright, Julian R Dupuis","doi":"10.11646/zootaxa.5839.1.3","DOIUrl":"10.11646/zootaxa.5839.1.3","url":null,"abstract":"<p><p>The carrion beetle fauna (Staphylinidae: Silphinae) of eastern North America has seen some recent changes and additions in the past decade. Two species of <i>Silpha</i> have been introduced and have become established and <i>Nicrophorus vespilloides</i> was discovered to be two species. In this paper, we present a fully illustrated key to the Silphinae of eastern North America (U.S. states entirely east of the Mississippi River and Canadian provinces east of the Ontario-Manitoba border) that reflects these faunal changes. We focus on the silphine fauna of Kentucky and include the single species of Agyrtidae (primitive carrion beetles), as common sampling methods will often pick up members of both groups. We include 22 species of Silphinae and one species of Agyrtidae in our key, and we report one species of Agyrtidae and 11 species of Silphinae from Kentucky, including one new state record (<i>Nicrophorus defodiens</i>). We present the following information for each eastern North American species in an annotated list: diagnostic characters, recent taxonomic changes (if applicable), life history information and more detailed information for Kentucky species including counties, collecting years and months, collections housing the specimens, and collecting methods. Distribution maps for Kentucky specimens are presented. Using this dataset, the bias-corrected <i>iChao2</i> species richness estimator predicted that 12 species should be found in Kentucky, indicating that our sampling is likely complete.</p>","PeriodicalId":24072,"journal":{"name":"Zootaxa","volume":"5839 1","pages":"71-109"},"PeriodicalIF":0.9,"publicationDate":"2026-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148399634","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 : 2026-06-26DOI: 10.11646/zootaxa.5839.1.6
Anastasia O Borisanova
{"title":"<b>A new species of solitary Entoprocta (Loxosomatidae) from mangroves of Vietnam with close affinity to <i>Loxomitra</i></b>.","authors":"Anastasia O Borisanova","doi":"10.11646/zootaxa.5839.1.6","DOIUrl":"10.11646/zootaxa.5839.1.6","url":null,"abstract":"<p><p>The new species of solitary entoproct, <i>Loxosomella incurva</i> <b>sp. nov.</b>, is described from the Cần Giờ Mangrove Forest, located in the south coastal region of Vietnam. This is the first description of a member of the Loxosomatidae from Vietnamese waters and from the mangrove ecosystems. The specimens of Loxosomatidae were found on the polychaete of the family Acoetidae. <i>Loxosomella incurva</i> <b>sp. nov.</b> is a medium-sized species with a characteristically curved body-the calyx is inclined toward the short stalk. The calyx bears seven or eight tentacles. Four (or five) sensory papillae are located along the edge of the calyx. Specimens attach to the host's body with an elongated narrow platform at the end of the stalk. Buds lack a pedal disc or a creeping foot and instead possess a unique annular bulge. Molecular phylogenetic analyses of partial sequences of two genetic markers, 28S rRNA and 18S rRNA, revealed a close relationship between <i>L. incurva</i> <b>sp. nov.</b> and two species of the subgenus <i>Loxomitra</i>, <i>L. (L.) tetraorganon</i> and <i>L. (L.) mizugamaensis</i>. <i>Loxosomella incurva</i> <b>sp. nov.</b> does not possess the diagnostic morphological features of <i>Loxomitra</i>: its buds lack the wings at the end of the stalk and attach to the maternal specimen by the base of the stalk, rather than by the back of the stalk or calyx as in <i>Loxomitra</i>. A common feature of all three species within this clade is the absence of a foot at the end of the stalk in the bud. The existing system of Loxosomatidae requires revision, since according to molecular genetic data, neither the genus <i>Loxosoma</i> nor the genus <i>Loxosomella</i> are monophyletic. The creeping foot was likely present in the common ancestor of all Loxosomatidae and has been retained in some lineages while modified in others; therefore, its presence cannot serve as a diagnostic generic character.</p>","PeriodicalId":24072,"journal":{"name":"Zootaxa","volume":"5839 1","pages":"139-154"},"PeriodicalIF":0.9,"publicationDate":"2026-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148399687","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 : 2026-06-26DOI: 10.11646/zootaxa.5839.1.5
Puthoor Pattammal Sudhin, Pradeep M Sankaran, Souvik Sen
{"title":"<b>Taxonomic notes on species of the genera <i>Agelena</i> Walckenaer, 1805, <i>Tamgrinia</i> Lehtinen, 1967 and <i>Tegenaria</i> Latreille, 1804 from India, with remarks on an allied species from Nepal (Araneae: Agelenidae)</b>.","authors":"Puthoor Pattammal Sudhin, Pradeep M Sankaran, Souvik Sen","doi":"10.11646/zootaxa.5839.1.5","DOIUrl":"https://doi.org/10.11646/zootaxa.5839.1.5","url":null,"abstract":"<p><p>The species belonging to <i>Agelena</i> Walckenaer, 1805, <i>Tamgrinia</i> Lehtinen, 1967 and <i>Tegenaria</i> Latreille, 1804 described or recorded from India are reviewed. The following new synonymies are recognised: <i>Agelena</i><i>shillongensis</i> Tikader, 1969 <b>syn. nov.</b> with <i>Tegenaria</i><i>domestica</i> (Clerck, 1757), and <i>Tegenaria</i><i>comstocki</i> Gajbe, 2004 <b>syn. nov.</b> with the titanoecid species <i>Pandava</i><i>laminata</i> (Thorell, 1878). The synonymy of the Indian species <i>Tegenaria chhanguensis</i> Tikader, 1970 with the Chinese species <i>Tamgrinia</i><i>alveolifera</i> (Schenkel, 1936) as proposed by Hu (2001), is confirmed based on an examination of the type specimen of the former one. The species <i>Agelena</i><i>satmila</i> Tikader, 1970, <i>Tegenaria</i><i>hemanginiae</i> Reddy & Patel, 1992, and <i>T</i>. <i>shillongensis</i> Barman, 1979 are considered <i>species</i><i>inquirendae</i>. The Nepalese agelenid species <i>Tegenaria</i><i>lunakensis</i> Tikader, 1964 is transferred to <i>Draconarius</i> Ovtchinnikov, 1999: <i>D</i>. <i>lunakensis</i> (Tikader, 1964) <b>comb. nov.</b> Photographs of all the examined type material, and supplementary descriptions for <i>Agelena barunae</i> Tikader, 1970, <i>A</i>. <i>gautami</i> Tikader, 1962, <i>A</i>. <i>satmila</i>, and <i>D</i>. <i>lunakensis</i><b>comb. nov.</b> are provided.</p>","PeriodicalId":24072,"journal":{"name":"Zootaxa","volume":"5839 1","pages":"121-138"},"PeriodicalIF":0.9,"publicationDate":"2026-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148399681","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 : 2026-06-26DOI: 10.11646/zootaxa.5839.1.12
Laurence A Mound
{"title":"<b><i>Praepodothrips dianellae</i> sp. nov. (Thysanoptera: Phlaeothripidae): validation of this name</b>.","authors":"Laurence A Mound","doi":"10.11646/zootaxa.5839.1.12","DOIUrl":"https://doi.org/10.11646/zootaxa.5839.1.12","url":null,"abstract":"","PeriodicalId":24072,"journal":{"name":"Zootaxa","volume":"5839 1","pages":"200"},"PeriodicalIF":0.9,"publicationDate":"2026-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148399514","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}