European Journal of Taxonomy 2022-05-18T13:43:39-07:00 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> Description of two new species of Oecetis (Trichoptera, Leptoceridae) from Borneo 2022-05-18T13:43:39-07:00 Kjell Arne Johanson Tobias Malm Tin Sjöberg <p>Two new species of <em>Oecetis</em> from Maliau Basin, Malaysian Borneo, are described for the first time, <em>O. mesospina</em> sp. nov. and <em>O. apelqvisti</em> sp. nov. These two new species bring the total number of <em>Oecetis</em> found on the island of Borneo up to 16.</p> 2022-05-18T00:00:00-07:00 Copyright (c) 2022 Kjell Arne Johanson, Tobias Malm, Tin Sjöberg A review of Atlantic deep-water species in the genus Talassia (Caenogastropoda, Vanikoridae) 2022-05-17T13:43:33-07:00 Leon Hoffman André Freiwald <p>A review was done on all species of the genus <em>Talassia</em> (family Vanikoridae Gray, 1840), which are known from an upper bathyal depth range in the Atlantic Ocean. Four new species are proposed: <em>Talassia mexicana </em>sp.&nbsp;nov. from the Gulf of Mexico, <em>T.&nbsp;laevapex </em>sp.&nbsp;nov. and <em>T.&nbsp;flexisculpta </em>sp.&nbsp;nov. from off Mauritania and <em>T.&nbsp;rugosa </em>sp.&nbsp;nov. from off Angola. Empty shells of the new species were found in sediment samples collected in habitats associated with deep-water corals. The new species were compared with the type species <em>Talassia coriacea</em> (Manzoni, 1868) and the deep-water species <em>T.&nbsp;tenuisculpta </em>(R.B. Watson, 1873), <em>T.&nbsp;dagueneti</em> (de Folin, 1873) and <em>T.&nbsp;sandersoni </em>(A.E. Verrill, 1884). Particularly the shape and sculpture of the protoconch show regional differences. Other specific characteristics are macro- and micro-sculpture of the teleoconch.</p> 2022-05-16T23:48:42-07:00 Copyright (c) 2022 Leon Hoffman, André Freiwald Revision of the Eurasian species of Aegilips Haliday, 1835 (Hymenoptera: Figitidae: Anacharitinae) 2022-05-16T13:42:52-07:00 Noel Mata-Casanova Jesús Selfa Juli Pujade-Villar <p>The knowledge of <em>Aegilips</em> in Eurasia is updated. One new species is described: <em>Aegilips insularis</em> Mata-Casanova and Pujade-Villar sp. nov., from Portugal (Madeira). The genus is also cited for the first time in the Indomalayan region with specimens of <em>A. atricornis</em> found in Northern India and Pakistan. <em>Aegilips curvipes</em> Giraud,&nbsp;1860, <em>Aegilips gemellus</em> Belizin,&nbsp;1961, <em>Aegilips laevis</em> (Hedicke,&nbsp;1914), <em>Aegilips montanus</em> Belizin,&nbsp;1951 and <em>Aegilips punctatus</em> Belizin,&nbsp;1951 are synonymized with <em>A. nitidulus</em> (Dalman,&nbsp;1823). <em>Aegilips vena</em> Fergusson,&nbsp;1985 is synonymized with <em>Aegilips zaitzevi</em> Kovalev,&nbsp;1974. <em>Aegilips notatus</em> Belizin,&nbsp;1951, and <em>Aegilips punctulatus</em> Hedicke,&nbsp;1928 are designated as incertae sedis. The known distributions of <em>A. atricornis</em>, <em>A. kozlovi</em>, <em>A. nitidulus</em> and <em>A. romseyensis</em> are expanded. Morphological differences are discussed and a key for Eurasian<em> Aegilips</em> species is also given.</p> 2022-05-16T03:24:47-07:00 Copyright (c) 2022 Noel Mata-Casanova, Jesús Selfa, Juli Pujade-Villar Review of the genus Caucaseuma Strasser, 1970, with the description of a new cavernicolous species from the Western Caucasus and an updated key and distribution (Diplopoda, Chordeumatida, Anthroleucosomatidae) 2022-05-13T13:42:33-07:00 Dragan Antić Slobodan Makarov <p>A new species of the genus <em>Caucaseuma</em> Strasser, 1970, <em>Caucaseuma strasseri</em> Antić sp.&nbsp;nov., is described from a cave in the Western Caucasus, representing the eighth species of the genus, and the fourth presumed troglobiontic <em>Caucaseuma</em>. An updated key to and a distribution map of all eight species of <em>Caucaseuma</em> is presented, including new records. In addition, the cave millipede fauna of the Caucasus is briefly discussed, with the inclusion of the most relevant references.</p> 2022-05-13T01:27:35-07:00 Copyright (c) 2022 Dragan Antić, Slobodan Makarov New species of the cuckoo bee genus Austrosphecodes Michener, 1978 (Hymenoptera: Apoidea: Sphecodini) and a key for Brazilian species 2022-05-12T13:42:31-07:00 Rodrigo Barbosa Gonçalves Felipe Walter Pereira <p>The bee genus <em>Austrosphecodes </em>Michener, 1978 comprises 29 obligatory cleptoparasitic species distributed from Chile to Mexico. Currently, three species are known to occur in Brazil, <em>Austrosphecodes brasiliensis</em> (Schrottky, 1910), <em>A</em>.<em> inornatus</em> (Schrottky, 1902), and <em>A</em>.<em> minarum</em> (Schrottky, 1910). Here, we describe nine new species, <em>Austrosphecodes asmodeus</em> sp. nov., <em>A</em>.<em> balrog</em> sp. nov., <em>A</em>.<em> cerberus</em> sp. nov., <em>A</em>.<em> gorgon</em> sp. nov., <em>A</em>.<em> jurupari </em>sp. nov., <em>A</em>.<em> krampus</em> sp. nov., <em>A</em>.<em> lucifer</em> sp. nov., <em>A</em>.<em>&nbsp;orcus</em> sp.&nbsp;nov., and <em>A</em>.<em> tartarus</em> sp. nov. An identification key for the 12 known species from Brazil is presented. Specimens of <em>A</em>.<em> asmodeus</em> sp. nov. and <em>A</em>.<em> brasiliensis</em> were observed near nest aggregations of <em>Caenohalictus incertus</em> (Schrottky, 1902) in Curitiba (State of Paraná).</p> 2022-05-12T00:22:23-07:00 Copyright (c) 2022 Rodrigo Barbosa Gonçalves, Felipe Walter Pereira Revision of the African cichlid fish genus Ctenochromis (Teleostei, Cichliformes), including a description of the new genus Shuja from Lake Tanganyika and the new species Ctenochromis scatebra from northern Tanzania 2022-05-11T13:42:23-07:00 Martin J. Genner Ling-Lan Hsu Rupert A. Collins Alan M. Smith Andrew D. Saxon Asilatu H. Shechonge Benjamin P. Ngatunga George F. Turner <p>Molecular phylogenetic evidence clearly resolves the African cichlid fish genus <em>Ctenochromis</em>, as defined by Greenwood (1979), as paraphyletic. Here, we redefine the genus <em>Ctenochromis</em> and assign <em>Ctenochromis horei</em>, a member of the Tropheini from Lake Tanganyika, to a new genus <em>Shuja</em> gen. nov. We restrict Ctenochromis to <em>Ctenochromis pectoralis</em> and <em>Ctenochromis scatebra</em> sp. nov., both of which are endemic to the Pangani River catchment in northern Tanzania, and are resolved as sister taxa in a phylogenetic analysis using genome-wide data. <em>Ctenochromis pectoralis</em> is the type species of the genus and described from specimens collected near Korogwe, Tanzania. The species was declared extinct in a 2016 IUCN Red List Assessment. We confirm the continued presence of a population of <em>C. pectoralis</em> within the Ruvu tributary linking Lake Jipe to Nyumba ya Mungu Reservoir. The new taxon <em>Ctenochromis scatebra</em> sp. nov. is described from Chemka Springs, and recognised on the basis of differences from <em>C. pectoralis</em> in tooth and jaw morphology.</p> 2022-05-11T01:52:03-07:00 Copyright (c) 2022 Martin J. Genner, Ling-Lan Hsu, Rupert A. Collins, Alan M. Smith, Andrew D. Saxon, Asilatu H. Shechonge, Benjamin P. Ngatunga, George F. Turner Phylogenetic position of genera Acrostilicus Hubbard and Pachystilicus Casey (Staphylinidae, Paederinae) and their redescription 2022-05-09T13:42:17-07:00 Dagmara Żyła Alexandra Tokareva Katarzyna Koszela <p><em>Acrostilicus</em> Hubbard, 1896 and <em>Pachystilicus</em> Casey, 1905 are North American genera known from only one and two species, respectively, and have never been a subject of a modern revision. In fact, <em>Acrostilicus</em> was not even properly described as its author provided only a sketchy diagnosis of the genus and species. Here, we provide a redescription of the genus <em>Acrostilicus</em> and its species and illustrate the habitus and male genital features. For the first time, we also redescribe <em>Pachystilicus </em>and its two species, and provide their differential diagnoses. Additionally, we tested the phylogenetic position of both genera. They were scored into a morphological matrix supplemented with molecular data and the analyses were run using Bayesian inference and maximum likelihood methods. A total of 119 morphological characters and 4859 bp of nuclear (28S, TP, Wg, CADA, CADC, ArgK) and mitochondrial (COI) sequences were analysed for 46 taxa. The results confirmed that both <em>Acrostilicus</em> and <em>Pachystilicus</em> are members of the subtribe Stilicina, but at the same time challenged the monophyly of the subtribe in its current composition. Additionally, we provided further evidence for non-monophyly of the subtribe Medonina and discussed the biology of <em>Acrostilicus</em> and <em>Pachystilicus</em>.</p> 2022-05-09T00:00:00-07:00 Copyright (c) 2022 Dagmara Żyła, Alexandra Tokareva, Katarzyna Koszela Ebenacobius Haran, a new southern African genus of flower weevils (Coleoptera: Curculioninae: Derelomini) associated with dicotyledonous plants 2022-05-05T13:42:00-07:00 Julien Haran Laure Benoit Şerban Procheş Gael J. Kergoat <p>A new genus of derelomine flower weevil (Curculionidae: Derelomini sensu Franz 2006), <em>Ebenacobius </em>Haran gen.<strong>&nbsp;</strong>nov., is described to accommodate a clade of species morphologically and phylogenetically distinct from other genera in this tribe. This genus can be diagnosed as follows: protibiae armed with an apical mucro, claws free, eye convexity exceeding the contour of head in dorsal view and forehead with a median furrow. In total, 19 species are recognized in this genus; 14 species are described as new (<em>E.&nbsp;curvisetis </em>Haran gen.&nbsp;et sp.&nbsp;nov.; <em>E.&nbsp;duplicatus</em> Haran gen.&nbsp;et sp.&nbsp;nov.; <em>E.&nbsp;grobbelaarae </em>Haran gen.&nbsp;et sp.&nbsp;nov.; <em>E.&nbsp;hessei</em> Haran gen.&nbsp;et sp.&nbsp;nov.; <em>E</em>. <em>hippopotamorum</em> Haran gen.&nbsp;et sp.&nbsp;nov.; <em>E.&nbsp;kuscheli </em>Haran gen.&nbsp;et sp.&nbsp;nov.; <em>E.</em> <em>mulanjensis</em> Haran gen.&nbsp;et sp.&nbsp;nov.; <em>E.&nbsp;oberprieleri</em> Haran gen.&nbsp;et sp.&nbsp;nov.; <em>E.&nbsp;rectirostris </em>Haran gen.&nbsp;et sp.&nbsp;nov.; <em>E</em>.<em> san</em> Haran gen.&nbsp;et sp.&nbsp;nov.; <em>E</em>.<em> pedi </em>Haran gen.&nbsp;et sp.&nbsp;nov.; <em>E</em>.<em>&nbsp;thoracicus </em>Haran gen.&nbsp;et sp.&nbsp;nov.; <em>E</em>.<em> tsonga </em>Haran gen.&nbsp;et sp.&nbsp;nov. and <em>E.&nbsp;xhosa </em>Haran gen.&nbsp;et sp.&nbsp;nov.), five species of <em>Derelomus</em> Schoenherr (<em>D. atratus</em> Hesse; <em>D. costalis</em> Fåhraeus; <em>D. incognitus</em> Hesse; <em>D. rhodesianus</em> Hesse; <em>D. turneri</em> Marshall) are hereby transferred to <em>Ebenacobius</em> gen.&nbsp;nov. and one species name is placed in synonymy (<em>Derelomus rugosicollis</em> Hesse, 1929 = <em>Derelomus costalis</em> Fåhraeus, 1844 syn. nov.). Members of <em>Ebenacobius </em>gen.&nbsp;nov. seem to develop in inflorescences of dicot plants, with larval stages of at least two species recovered from the flowers of <em>Euclea </em>species (Ebenaceae). A key to the continental African genera of Derelomini and to species of <em>Ebenacobius </em>gen.&nbsp;nov. is provided. Pictures of habitus and terminalia of adults, along with distribution and life history data are also provided for each species.</p> 2022-05-05T00:00:00-07:00 Copyright (c) 2022 Julien Haran, Laure Benoit, Şerban Procheş, Gael J. Kergoat Unveiling an enigma from the Cerrado: taxonomic revision of two sympatric species of Apostolepis Cope, 1862 (Dipsadidae: Xenodontinae: Elapomorphini) from central Brazil 2022-05-04T13:41:44-07:00 Omar M. Entiauspe-Neto Claudia Koch Thaís B. Guedes Rafael C.B. Paredero Arthur Tiutenko Daniel Loebmann <p><em>Apostolepis albicollaris </em>and <em>A.&nbsp;cerradoensis </em>are two Elapomorphini snake species, described within a short timespan, from the Cerrado of central Brazil. In their brief descriptions, these two species were diagnosed from congeners largely based on highly variable external morphological characters. Interestingly enough, <em>A.&nbsp;cerradoensis</em> has remained known based on a single specimen since its description. Here, we present a reanalysis of both type specimens, as well as a careful examination of a large series of specimens formerly assigned to these species, based on the comparison of internal and external morphology. We conclude that both species are synonymous, providing evidence for the recognition of <em>A.&nbsp;cerradoensis</em> as a junior synonym of <em>A.&nbsp;albicollaris</em>. Furthermore, an account of its updated diagnosis, morphological variation, geographic distribution, hemipenial morphology, phylogenetic relationships and an osteological description are also provided. We also discuss its conservation status, suggesting that the species is under threat and qualifies to be listed as Vulnerable (VU ab(iii)), considering its rarity, small geographic range, and persistent environmental threats.</p> 2022-05-04T00:00:00-07:00 Copyright (c) 2022 Omar M. Entiauspe-Neto, Claudia Koch, Thaís B. Guedes, Rafael C.B. Paredero, Arthur Tiutenko, Daniel Loebmann Revision of the genus Georissus (Coleoptera, Hydrophiloidea, Georissidae) of Japan 2022-05-03T13:41:36-07:00 Kohei Yasuda Hiroyuki Yoshitomi <p>Japanese species of the genus <em>Georissus</em> are revised. Seven species, including two new, <em>G.&nbsp;(Neogeorissus) takahashii</em> sp. nov. and <em>G. (Ne.) satoi</em> sp. nov. are recognized. <em>Georissus (Neogeorissus) sakaii</em> Satô, 1972 and <em>G. (Ne.) katsuoi</em> Nakane, 1995 are synonymized with <em>G. (Ne.) japonicus</em> Satô, 1972. Based on the type series and additional specimens, three subgenera and seven species are (re)described with SEM micrographs of the external morphology and figures of male and female genitalia. The terminology of some structures of the head and the pronotum are redefined for convenience of taxonomy. A key to the Japanese species is also given.</p> 2022-05-03T00:00:00-07:00 Copyright (c) 2022 Kohei Yasuda, Hiroyuki Yoshitomi