European Journal of Taxonomy 2021-01-18T00:47:31-08:00 Laurence Benichou Open Journal Systems <p>The <em>European Journal of Taxonomy</em> is a peer-reviewed international journal in descriptive taxonomy, covering the eukaryotic world. Its content is fully electronic and <a href="">Open Access</a>. It is published and funded by a <a href="">consortium</a> of European natural history institutions. Neither authors nor readers have to pay fees. All articles published in <em>EJT</em> are compliant with the different nomenclatural codes. <em>EJT</em> is an archived and indexed journal that welcomes scientific contributions from all over the world, both in content and authorship. If you have any questions about <em>EJT</em>, please <a href="">contact us</a></p> All-inclusive descriptions of new freshwater snail taxa of the hyperdiverse family Tateidae (Gastropoda, Caenogastropoda) from the South Island of New Zealand 2021-01-18T00:47:31-08:00 Gerlien Verhaegen Martin Haase <p>Four new species and one new subspecies of tateid freshwater gastropods are described from the north of the South Island of New Zealand, <em>Catapyrgus jami</em> sp. nov., <em>Opacuincola lisannea</em> sp. nov., <em>O. gretathunbergae</em> sp. nov., <em>O. mete kahurangi</em> ssp. nov. and <em>Obtusopyrgus farri</em> sp. nov. The species are integratively defined based on a combination of shell morphological, anatomical and mitochondrial DNA data. Morphological and anatomical data were generated by morphometrics, scanning electron microscopy, as well as micro-computed tomography. The genetic data were basis of phylogenetic analyses and incorporated into the diagnoses. The new taxa occur in springs or spring-like habitats, i.e., shallow, slow-flowing sections of small streams except for <em>O. mete kahurangi</em> subsp. nov., which was collected from rough rocks in a river, where the snails sat in small depressions. None of the species exceeded 2.75 mm in length. <em>Opacuincola gretathunbergae</em> sp. nov. and <em>Obtusopyrgus farri</em> sp. nov. are pigmented and true crenobionts, while <em>C. jami</em> sp. nov. and the sympatric <em>Opacuincola lisannea</em> sp. nov. have eyes of reduced size and lack epidermal pigment, hence, probably dwell in the transitional zone of epigean and groundwaters.</p> 2021-01-18T00:46:46-08:00 Copyright (c) 2021 Gerlien Verhaegen, Martin Haase A new Cyrtodactylus (Squamata: Gekkonidae) from Binh Thuan Province, southern Vietnam 2021-01-13T02:49:48-08:00 Sabrina Ostrowski Minh Duc Le Hanh Thi Ngo Cuong The Pham Trung My Phung Truong Quang Nguyen Thomas Ziegler <p>We describe a new species of <em>Cyrtodactylus</em> on the basis of two specimens collected from Ta Kou Nature Reserve, Binh Thuan Province, southern Vietnam. <em>Cyrtodactylus chungi</em> sp. nov. is distinguished from the remaining Indochinese bent-toed geckos by a combination of the following characters: relatively small body size (SVL up to 68.5 mm); a continuous neckband; 5 or 6 irregular transverse dorsal bands; 11 or 12 bands on original tail; keeled tubercles present on dorsum, posterior limbs and tail; 17 or 18 irregular dorsal tubercle rows; 30 or 31 ventral scale rows; ventrolateral skin folds indistinct; an angular series of seven precloacal pores in male and six pitted, enlarged precloacal scales in female, each series separated by a diastema of undifferentiated scales from 4–6 enlarged, poreless femoral scales; median subcaudals slightly enlarged; 17–20 subdigital lamellae under the fourth toe. Based on molecular analyses of the fragment of mitochondrial gene cytochrome c oxidase subunit I (COI), the new species is recovered as the sister taxon to <em>Cyrtodactylus cattienensis</em> s. str. with a genetic divergence of more than 9%. In phylogenetic analyses, the new species is recovered as a member of the <em>Cyrtodactylus irregularis</em> species group.</p> 2021-01-13T00:00:00-08:00 Copyright (c) 2021 Sabrina Ostrowski, Minh Duc Le, Hanh Thi Ngo, Cuong The Pham, Trung My Phung, Truong Quang Nguyen, Thomas Ziegler Asian cave-adapted diplurans, with the description of two new genera and four new species (Arthropoda, Hexapoda, Entognatha) 2021-01-05T02:22:09-08:00 Alberto Sendra Ana Komerički Josiane Lips Yunxia Luan Jesús Selfa Alberto Jiménez-Valverde <p>Twenty-nine specimens of Diplura collected from eight caves in China and Myanmar contain two new genera, <em>Hubeicampa</em> Sendra &amp; Lips gen. nov. and <em>Mueggejapyx</em> Sendra &amp; Komerički gen. nov., as well as four new species, <em>Anisuracampa ywangana</em> Sendra &amp; Komerički sp. nov., <em>Hubeicampa melissa</em> Sendra &amp; Lips gen. et sp. nov., <em>Pacificampa wudonghuii</em> Sendra sp. nov. and <em>Mueggejapyx brehieri</em> Sendra &amp; Komerički gen. et sp. nov. These cave-adapted taxa showcase an impressive diversity in morphological adaptation (troglomorphy) to cave ecosystems. Their sensorial equipment, setae and receptors in the cupuliform organ have unique forms (<em>H. melissa</em> gen. et sp. nov.), as well as the pretarsus sticky surface (<em>A. ywangana</em> sp. nov. and <em>H. melissa</em> gen. et sp. nov.). Recent contributions on Asian diplurans, together with the taxonomic novelties shown in the present study, highlight the biogeographical importance of the Asian biodiversity. Asia is revealed as a continent with vast karst regions still waiting to be explored and new dipluran species waiting to be discovered.</p> 2021-01-05T01:44:50-08:00 Copyright (c) 2021 Alberto Sendra, Ana Komerički, Josiane Lips, Yunxia Luan, Jesús Selfa, Alberto Jiménez-Valverde Description, redescription and revision of sixteen putatively closely related species of Echinoderes (Kinorhyncha: Cyclorhagida), with the proposition of a new species group – the Echinoderes dujardinii group 2020-12-30T03:03:08-08:00 Martin V. Sørensen Freya E. Goetz María Herranz Cheon Young Chang Tapas Chatterjee Furkan Durucan Ricardo C. Neves N. Özlem Yildiz Jon Norenburg Hiroshi Yamasaki <p>Thirteen species of <em>Echinoderes </em>with nearly identical spine/tube patterns, and apparently similar tergal extensions were re-examined and compared. Based on this, redescriptions and/or emended species diagnoses are provided for <em>Echinoderes aureus</em>, <em>E.&nbsp;dujardinii</em>, <em>E.&nbsp;gerardi</em>, <em>E.&nbsp;imperforatus</em>, <em>E.&nbsp;pacificus</em>,<em> E.&nbsp;pilosus</em>,<em> E.&nbsp;sensibilis</em>,<em> E.&nbsp;sublicarum </em>and <em>E.&nbsp;worthingi</em>, and new details about cuticular structures are added for <em>E.&nbsp;kozloffi </em>and <em>E.&nbsp;gizoensis</em>. The new information derived from the redescriptions, and the subsequent comparative studies revealed that: 1) the holotype of <em>Echinoderes lanceolatus </em>is identical with the types of <em>Echinoderes aureus</em>, and <em>E.&nbsp;lanceolatus</em> is thus a junior synonym of <em>E.&nbsp;aureus</em>; other potentially synonymous species that should be addressed further in the future include: <em>E.&nbsp;dujardinii&nbsp;</em>+ <em>E.&nbsp;gerardi</em>; <em>E.&nbsp;imperforatus </em>+ <em>E.&nbsp;sensibilis</em>, and <em>E.&nbsp;pacificus </em>+ <em>E.&nbsp;sublicarum</em>; 2) the paratypes of <em>E.&nbsp;lanceolatus </em>represented a different yet undescribed species, here described as <em>E.&nbsp;songae </em>Sørensen &amp; Chang sp. nov.; 3) a comparison with literature information about <em>E.&nbsp;ehlersi </em>showed that the species is so insufficiently described that a redescription of topotype material is required before the species should be considered for taxonomic comparison; 4) specimens from the Andaman Islands, India, that previously have been reported as <em>Echinoderes </em>cf. <em>ehlersi</em> represent two different undescribed species, of which one is described as <em>E.&nbsp;chandrasekharai </em>Sørensen &amp; Chatterjee sp. nov. and the other is left undescribed due to the limited material available; 5) out of a total of fifteen addressed species, it is proposed that eleven represent a putatively monophyletic group that is named the <em>Echinoderes dujardinii </em>group. The group includes following species: <em>E.&nbsp;dujardinii</em>, <em>E.&nbsp;ehlersi</em>, <em>E.&nbsp;gerardi</em>, <em>E.&nbsp;imperforatus</em>, <em>E.&nbsp;kozloffi</em>, <em>E.&nbsp;sensibilis</em>, <em>E.&nbsp;pacificus</em>,<em> E.&nbsp;sublicarum</em>, <em>E.&nbsp;songae </em>Sørensen &amp; Chang sp. nov., <em>E.&nbsp;chandrasekharai </em>Sørensen &amp; Chatterjee sp. nov., and <em>Echinoderes</em> sp. from the Andaman Islands, and is supported by a similar spine/tube pattern (except for variation regarding the presence of lateral accessory tubes on segment&nbsp;8); generally short middorsal spines, especially on segments 4 to 6; glandular cell outlets type&nbsp;1 always present in middorsal positions on segments 1 to 3, and in subdorsal positions on segments 4 to 9; glandular cell outlets type 2 always present in laterodorsal or midlateral positions on segment 8, and sometimes in same positions on segment 9 but never at any other segments or positions; female papillae always present on sternal plates of segments&nbsp;7 and 8, and occasionally also on segment 6; tergal extensions well-spaced, triangular, gradually tapered cones, and pectinate fringes of sternal extensions are differentiated into seta-like tufts. The comparisons furthermore showed potential taxonomic significance of two echinoderid character traits that previously have been slightly neglected as diagnostic traits, namely the presence and appearance of female papillae, and the dorsal pattern of glandular cell outlets type&nbsp;1. Female papillae may occur on the sternal plates of segments 6 to 8, but the positions may differ from ventrolateral to ventromedial, and the morphology of the intracuticular substructure also differ at species level. Information about position and morphology of female papillae proved helpful for species recognition, but it might also provide information of phylogenetic importance. Analyses of glandular cell outlet type 1 patterns on the dorsal sides of segments 1 to 9 in species of Echinoderidae, revealed several apparently unique or rare patterns, but also three distinct patterns that applied to larger groups of species. One pattern is the one present in all species of the <em>E.&nbsp;dujardinii </em>group, whereas the other two common patterns included 1) middorsal outlets on segments 1 to 3, and paradorsal outlets on segments 4 to 9 (found in 27 species), and 2) middorsal outlets on segments 1 to 3, 5 and 7, and paradorsal outlets on segments 4, 6 and 8 to 9 (found in 27 species)</p> 2020-12-30T02:31:50-08:00 Copyright (c) 2020 Martin V. Sørensen, Freya E. Goetz, María Herranz, Cheon Young Chang, Tapas Chatterjee, Furkan Durucan, Ricardo C. Neves, N. Özlem Yildiz, Jon Norenburg, Hiroshi Yamasaki Discometra luberonensis sp. nov. (Crinoidea, Himerometridae), a new feather star from the Late Burdigalian 2020-12-29T00:06:53-08:00 Marc Eléaume Michel Roux Michel Philippe <p>Most fossil feather stars are known only from the centrodorsal often connected to the radial circlet. This is the case for <em>Discometra rhodanica</em> (Fontannes, 1877), the type species of the genus <em>Discometra</em>, collected from the Late Burdigalian of the Miocene Rhône-Provence basin (southeastern France). The quarries operating in this area have exposed layers from the Late Burdigalian on the northern flank of the Lubéron anticline near Ménerbes (basin of Apt, Vaucluse, southeastern France). These layers contain exceptionally well-preserved echinoderms, among which are three specimens of a feather star with cirri and arms still connected to the centrodorsal. They are attributed to a new species: <em>Discometra luberonensis</em> sp.&nbsp;nov. (Himerometridae). The number of arms can reach 60, as in extant species of the genus <em>Himerometra</em>, but the pattern of arm divisions is closer to that of the genus <em>Heterometra</em>, which has no more than 45 arms in extant species. <em>Discometra luberonensis</em> sp.&nbsp;nov. differs from <em>D.&nbsp;rhodanica</em> by the characters of its centrodorsal. Here we redescribe the centrodorsal and radial circlets of <em>D.&nbsp;rhodanica</em> based on previously and newly collected specimens. We designate a neotype for <em>D.&nbsp;rhodanica</em>, because the holotype is considered lost. Affinities between <em>Discometra</em>, <em>Himerometra</em> and <em>Heterometra</em> are discussed.</p> 2020-12-29T00:00:00-08:00 Copyright (c) 2020 Marc Eléaume, Michel Roux, Michel Philippe New and little-known bees of the genus Sphecodes Latreille, 1804 (Hymenoptera: Apoidea: Halictidae) from the Himalayas 2020-12-28T02:09:44-08:00 Yulia Astafurova Maxim Proshchalykin <p>An annotated list of twenty species of rarely collected and little known bees of the genus <em>Sphecodes</em> Latreille, 1804 (Hymenoptera: Apoidea: Halictidae) from the Himalayas is given. <em>Sphecodes bluethgeni </em>sp. nov. is described from Bhutan. Three species are newly recorded from the Himalayas: <em>S.&nbsp;binghami </em>Blüthgen, 1924, <em>S.&nbsp;kershawi</em>&nbsp;Perkins, 1921 and <em>S.&nbsp;laticeps</em>&nbsp;Meyer, 1920. Based on type specimens, new synonymies have been proposed for <em>Sphecodes cameronii&nbsp;</em>(Bingham, 1897) = <em>S.&nbsp;armeniacus</em> Warncke, 1992 syn.&nbsp;nov.; <em>S.&nbsp;gibbus </em>(Linnaeus, 1758) = <em>S.&nbsp;indicus</em>&nbsp;Bingham, 1898 syn.&nbsp;nov.; and <em>S.&nbsp;invidus</em>&nbsp;(Cameron, 1897) = <em>S.&nbsp;nigrobasalis</em> Meyer, 1922 syn.&nbsp;nov. A lectotype is designated for <em>Sphecodes sikkimensis</em>&nbsp;Blüthgen, 1927. Illustrated keys to males and females of all species known from the Himalayas and an updated checklist of the 26 Himalayan species of <em>Sphecodes </em>are provided. Additionally, one new species from neighboring Uttar Pradesh (India), <em>Sphecodes uttaricus </em>sp. nov., is here described as new and included due to its close relationship to the Himalayan <em>S.&nbsp;sikkimensis </em>Blüthgen, 1927.</p> 2020-12-28T02:08:26-08:00 Copyright (c) 2020 Yulia Astafurova, Maxim Proshchalykin A new species of snail-eating snakes of the genus Pareas Wagler, 1830 (Reptilia: Serpentes) from eastern Himalayas, India 2020-12-17T01:15:20-08:00 Harshal Bhosale Pushkar Phansalkar Mandar Sawant Gaurang Gowande Harshil Patel Zeeshan A. Mirza <p>A new species of snail-eating snakes of the genus <em>Pareas</em> Wagler, 1830 is described from the eastern Himalayas. The species <em>Pareas kaduri</em> sp. nov. differs from all known species of the genus in bearing the following suite of characters: SVL 455–550 mm, TaL/TL 0.184–0.207, brown dorsum with black transverse bands throughout the body, 15 dorsal scale rows throughout the body and mid-dorsal vertebral scale rows enlarged, 8 rows keeled in males, loreal not touching orbit, ventrals 160–183, subcaudals 65–70 in males, 52 in one female specimen, hemipenis short, unilobed and 6–7 maxillary teeth. Molecular data for mitochondrial 16S rRNA and cytochrome <em>b</em> genes further attest the distinctness of the new species, which was recovered as a member of the <em>Pareas hamptoni</em> clade. Our work brings the total number of species recognized within the genus <em>Pareas</em> to 20.</p> 2020-12-17T01:14:43-08:00 Copyright (c) 2020 Harshal Bhosale, Pushkar Phansalkar, Mandar Sawant, Gaurang Gowande, Harshil Patel, Zeeshan A. Mirza Two new species of the aphid genus Uroleucon (Hemiptera: Aphididae) living on Grindelia in the USA 2020-12-16T01:43:12-08:00 Shalva Barjadze Mariusz Kanturski <p>Here, we present descriptions of two new aphid species of the genus <em>Uroleucon</em> Mordvilko, 1914 (Hemiptera: Aphididae: Macrosiphini), which are associated with the plant genus <em>Grindelia</em> Willd. (Asteraceae). An apterous viviparous female of <em>Uroleucon </em>(<em>Lambersius</em>)<em> robinsoni</em> sp.&nbsp;nov. from Oregon and apterous and alate viviparous females of <em>Uroleucon </em>(<em>Lambersius</em>)<em> grindeliae</em> sp.&nbsp;nov. from Colorado are described and illustrated. Taxonomical notes of the new and other <em>Grindelia</em>-feeding taxa of <em>Uroleucon</em> are given and an updated key to the apterae of the <em>Grindelia</em>-feeding species of <em>Uroleucon</em> in the world is provided.</p> 2020-12-16T01:11:23-08:00 Copyright (c) 2020 Shalva Barjadze, Mariusz Kanturski Ophioderma hendleri sp. nov. (Echinodermata: Ophiuroidea: Ophiodermatidae) and its congeners from the Eastern Pacific 2020-12-17T03:45:36-08:00 Rebeca Granja-Fernández Tania Pineda-Enríquez Francisco Alonso Solís-Marín Alfredo Laguarda-Figueras <p>The widespread <em>Ophioderma hendleri</em> sp. nov., from the Eastern Tropical Pacific (Mexico to Colombia) is distinguished from its congeners by having radial shields covered by granules, naked adoral shields, up to 11 arm spines, and by its brown and beige coloration. <em>Ophioderma hendleri</em> sp.&nbsp;nov. belongs to the group of species with naked adoral shields (i.e., <em>O. pentacanthum</em> H.L. Clark, 1917, <em>O.&nbsp;variegatum</em> Lütken, 1856), and it has frequently been misidentified as <em>O. panamense</em> Lütken, 1859 or <em>O. variegatum</em>. Therefore, the main aim of the present work was to describe <em>Ophioderma hendleri</em> sp.&nbsp;nov. and differentiate it from its congeners. The original description of <em>O. panamense</em> was incomplete; thus, we provide a redescription. Due to the confusion in previous designations of its type material, we designate a lectotype and paralectotype of <em>O. variegatum</em>. Finally, we expand the distribution range of <em>O. pentacanthum</em> to Cocos Island, Costa Rica. With this work, the total number of valid species of <em>Ophioderma</em> Müller &amp; Troschel, 1840 in the world increases to 33 and in the Eastern Pacific to nine species.</p> 2020-12-14T00:00:00-08:00 Copyright (c) 2020 Rebeca Granja-Fernández, Tania Pineda-Enríquez , Francisco Alonso Solís-Marín, Alfredo Laguarda-Figueras Hemipogon trilobatus sp. nov. (Apocynaceae: Asclepiadoideae), a new microendemic from Chapada dos Veadeiros, Central Brazil 2020-12-11T10:10:22-08:00 Cássia Bitencourt Amanda P.B. Santos Cristiane Snak Alessandro Rapini <p><em>Hemipogon</em> s.&nbsp;str. (Apocynaceae: Asclepiadoideae) currently consists of three species sharing an erect herbaceous habit, narrow leaves and corona-less flowers with urceolate, internally bearded corolla, that are mainly distributed in savannahs of the Cerrado biodiversity hotspot, South America. Here, we describe and illustrate a new species of <em>Hemipogon</em>, <em>H.&nbsp;trilobatus</em> Bitencourt &amp; Rapini sp. nov., from an open savannah in Chapada dos Veadeiros, Central Brazil. <em>Hemipogon trilobatus</em> sp.&nbsp;nov. differs from the other species of the genus mainly by the presence of a reduced staminal corona with 3-lobed lobes, but also by opposite leaves and triangular anthers. Distribution and habitat data, as well as a key and a comparative table to distinguish the four species currently accepted in <em>Hemipogon</em> s.&nbsp;str., are provided. Based on criteria B2ab(i,ii,iii,iv) of the International Union for Conservation of Nature (IUCN), the species is provisionally assessed as Critically Endangered.</p> 2020-12-11T00:39:14-08:00 Copyright (c) 2020 Cássia Bitencourt, Amanda P.B. Santos, Cristiane Snak, Alessandro Rapini