European Journal of Taxonomy <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> en-US <h3>Creative Commons Copyright Notices</h3> <div class="page"> <p>Authors who publish with this journal agree to the following terms:</p> <ol> <li class="show">Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a&nbsp;<a href="">Creative Commons Attribution License</a> (CC BY 4.0) that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.</li> <li class="show">Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.</li> <li class="show">Authors are NOT ALLOWED TO post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to taxonomic issues.</li> </ol> </div> (Laurence Benichou) (Kristiaan Hoedemakers) Wed, 24 Feb 2021 01:57:00 -0800 OJS 60 Four new species and further records of Dorvilleidae (Annelida, Polychaeta) from deep-sea organic substrata, NE Atlantic <p>Eight species of <em>Ophryotrocha</em> and one of <em>Parougia</em> were identified from organic substrata (wood and alfalfa) sampled at the Gulf of Cadiz and Western Iberian Margin (NE Atlantic). Morphological examination and molecular phylogenetic analyses, based on the nuclear gene H3 and the mitochondrial gene 16S, indicate the presence of four species new to science: <em>Ophryotrocha chemecoli</em> sp. nov., <em>O. nunezi</em> sp. nov., <em>O. geoffreadi</em> sp. nov. and <em>Parougia ougi</em> sp. nov. The geographic and/or bathymetric distribution is extended for four previously known species: <em>O. cantabrica</em>, <em>O. hartmanni</em>, <em>O. mammillata</em> and <em>O. scutellus</em>. Another species may also have its distribution extended, pending the molecular confirmation of its identity: <em>O. lipscombae</em>. Full descriptions and figures are given for all the new species and, when justified, also for the previously known ones. The original description of <em>O. scutellus</em> is amended. New DNA sequences are given for eight of the nine species studied here. The ecology and geographic distribution of the reported species is discussed.</p> Ascensão Ravara, Helena Wiklund, Marina R. Cunha Copyright (c) 2021 Ascensão Ravara, Helena Wiklund, Marina R. Cunha Fri, 26 Feb 2021 01:35:37 -0800 Polycladida (Platyhelminthes, Rhabditophora) from Cape Verde and related regions of Macaronesia <p>The systematics and distribution of the order Polycladida within the Macaronesian archipelagos are analysed. New species (<em>Marcusia alba</em> sp.&nbsp;nov., <em>Prostheceraeus crisostomum</em> sp.&nbsp;nov., <em>Parviplana sodade</em> sp.&nbsp;nov., <em>Euplana claridade</em> sp.&nbsp;nov., <em>Stylochus salis</em> sp.&nbsp;nov. and <em>Distylochus</em> <em>fundae</em> sp.&nbsp;nov.), new variety (<em>Pseudoceros rawlinsonae</em> var. <em>galaxy</em>), new records and records of shared species among different archipelagos are studied to compare the marine flatworm biodiversity of each island. The complex of archipelagos known as Macaronesia (including Madeira, Selvagens Islands, Canary Islands, Azores and Cape Verde) share a volcanic origin and European political influence. The five archipelagos are located along the eastern coast of the Atlantic Ocean and are subject to similar trade winds, streams (like the Gulf Stream) and cold currents. The term Macaronesia has suffered several changes throughout the years and it still is a topic of discussion in present times. The new delimitation of Macaronesia is mainly based on systematic studies on the invertebrate fauna of the islands. The resulting analyses shed new light on the differences and similarities among these archipelagos. In addition, molecular analyses employing 28S nuclear gene sequences are compared to verify relationships among anatomically similar species of marine polyclads.</p> Daniel Cuadrado, Jorge Rodríguez, Leopoldo Moro, Cristina Grande, Carolina Noreña Copyright (c) 2021 Daniel Cuadrado, Jorge Rodríguez, Leopoldo Moro, Cristina Grande, Carolina Noreña Wed, 24 Feb 2021 01:51:28 -0800 Four new species of Heteromysis (Crustacea: Mysida) from public aquaria in Hawaii, Florida, and Western to Central Europe <p>Four new species of the subgenus <em>Heteromysis</em> (<em>Olivemysis</em>) were detected in material from (sub)-tropical aquaria in six public aquarium institutions around the globe. Modifications of pleopods by spines represent the strongest structural complex used for differentiation within this subgenus: male pleopods 1–4 modified in <em>H. smithsoniana</em> sp. nov., male pleopods 2–4 plus female pleopod 2 in <em>H. hornimani</em> sp. nov. and <em>H. waikikensis</em> sp. nov. Additional important diagnostic characters are provided by the antennulae, uropods, and telson. The male of <em>H. sixi</em> sp. nov. represents a very rare case within the genus <em>Heteromysis</em> by having only pleopod 2 modified by flagellate spines. The definition of the subgenus <em>Olivemysis</em> is modified in order to include <em>H. sixi</em> sp. nov. A summary of pleopod modifications in the genus <em>Heteromysis</em> and a key to the species of the subgenus <em>Olivemysis</em> are given. The here described new taxa more than double the number of <em>Heteromysis</em> species known from aquaria yet unknown in nature from three to seven.</p> Karl J. Wittmann, Daniel Abed-Navandi Copyright (c) 2021 Karl J. Wittmann, Daniel Abed-Navandi Tue, 23 Feb 2021 01:20:11 -0800 Review of East Palaearctic Elliptera (Diptera, Limoniidae) immatures with description of a new species <p>The genus <em>Elliptera</em> Schiner, 1863 is represented by ten species worldwide, but immatures of only the European species <em>E. omissa</em> Schiner has been described so far. Molecular methods were used to associate larvae and adults for two East Asian species from South Korea. <em>Elliptera jacoti</em> Alexander and <em>E. zipanguensis</em> <em>zipanguensis</em> Alexander are common species in aquatic, hygropetric habitats in mountainous parts of the Korean peninsula. <em>Elliptera</em> <em>mongolica</em> Podeniene, Podenas &amp; Gelhaus sp. nov. from Mongolia and China (Inner Mongolia) is described based on mitochondrial DNA COI gene barcode sequences and morphological characters of larvae. Larvae of all three species and pupae of <em>E. jacoti</em> are described and illustrated. Morphological characters of the larvae useful for discrimination of species are given. An identification key for East Asian larvae of the genus <em>Elliptera</em> is compiled.</p> Virginija Podeniene, Sigitas Podenas, Sun-Jae Park, A-Young Kim, Jung A Kim, Jon K. Gelhaus Copyright (c) 2021 Virginija Podeniene, Sigitas Podenas, Sun-Jae Park, A-Young Kim, Jung A Kim, Jon K. Gelhaus Mon, 22 Feb 2021 01:57:41 -0800 A new genus of Achrysonini and new records in Cerambycidae (Coleoptera, Chrysomeloidea) from Colombia <p><em>Ysachron pilosus</em> gen. et sp. nov. is described from the Caribbean region of Colombia, and an updated key to genera of South American Achrysonini is provided. Moreover, the geographical distribution of 45 species of Cerambycidae, belonging to the subfamilies Cerambycinae, Lamiinae and Prioninae, is expanded, including nine new country records for Colombia and a further locality in Colombia for nine species.</p> Kimberly García, Juan Pablo Botero , Antonio Santos-Silva Copyright (c) 2021 Kimberly García, Juan Pablo Botero , Antonio Santos-Silva Fri, 19 Feb 2021 01:33:36 -0800 Revision of the troglomorphic genus Troglostygnopsis Šilhavý, 1974 (Opiliones, Laniatores, Stygnopsidae) <p>In the present paper, we have made a taxonomic revision of the previously monotypic genus <em>Troglostygnopsis</em> Šilhavý, 1974. Based on the revision of diverse material, the genus is rediagnosed and the type species, <em>Troglostygnopsis anophthalma</em> Šilhavý, 1974 is redescribed. The new species <em>Troglostygnopsis kalebi</em> sp.&nbsp;nov. is described from specimens collected in a cave in Chiapas, Mexico, and this species is compared with <em>T.&nbsp;anophthalma</em>. A final discussion on some troglobitic genera of Stygnopsidae is addressed.</p> Jesús A. Cruz-López, Oscar F. Francke Copyright (c) 2021 Jesús A. Cruz-López, Oscar F. Francke Thu, 18 Feb 2021 00:50:06 -0800 The Smicronychini of southern Africa (Coleoptera, Curculionidae): Review of the tribe and description of 12 new species <p>This study reviews the species of the tribe Smicronychini Seidlitz, 1891 found in southern Africa. In total, 18 species are recognized in this region, 12 of them being described as new (<em>Sharpia madibai</em> sp.&nbsp;nov., <em>Afrosmicronyx cycnii</em> sp.&nbsp;nov., <em>A.&nbsp;louwi</em> sp.&nbsp;nov., <em>A.&nbsp;marshalli</em> sp.&nbsp;nov., <em>A.&nbsp;nebulosipennis</em> sp.&nbsp;nov., <em>Smicronyx pseudocoecus</em> sp.&nbsp;nov., <em>S.&nbsp;australis</em> sp.&nbsp;nov., <em>S.&nbsp;drakensbergensis</em> sp.&nbsp;nov., <em>S.&nbsp;gracilipes</em> sp.&nbsp;nov., <em>S.&nbsp;paucisquamis</em> sp.&nbsp;nov., <em>S.&nbsp;san</em> sp.&nbsp;nov., <em>S.&nbsp;similis</em> sp.&nbsp;nov.). The following genera and species are newly reported from this area: <em>Afrosmicronyx</em> Hustache, 1935; <em>Sharpia</em> Tournier, 1873; <em>Smicronyx pauperculus </em>Wollaston, 1864; <em>S.&nbsp;albosquamosus </em>Wollaston, 1854 and<em> S.&nbsp;namibicus </em>Haran, 2018. New host plant taxa and plant associations for the tribe are reported among the families Gentianaceae Juss., Orobanchaceae Vent. and Convolvulaceae Juss. A key to species and images of the habitus of adults and male genitalia are provided.</p> Julien M. Haran Copyright (c) 2021 Julien M. Haran Wed, 17 Feb 2021 00:02:56 -0800 On the rare Neotropical genus Ophionthus Bernhauer (Coleoptera: Staphylinidae: Staphylininae): redescription of the type species and description of a new species <p>Two female specimens of the Neotropical genus <em>Ophionthus</em> Bernhauer were found during museum collection surveys, representing different species of the genus. These species are <em>Ophionthus serpentinus</em> Bernhauer, 1908 and <em>O. asenjoi</em> sp. nov. The genus <em>Ophionthus</em> was monotypic until the present study and only known from a single male specimen from Central Peru. The genus is redescribed with the inclusion of female characters from both the type species and the new species here proposed. Additionally, the systematic position of <em>Ophionthus</em> within the Neotropical lineage of Philonthina and its geographical distribution in Peru are reassessed. Descriptions, diagnoses, illustrations, pictures, a cladogram, and a distribution map are provided.</p> Maryzender Rodríguez-Melgarejo, Mariana Chani-Posse Copyright (c) 2021 Maryzender Rodríguez-Melgarejo, Mariana Chani-Posse Tue, 16 Feb 2021 00:00:00 -0800 On the genus Stephostethus LeConte, 1878 (Coleoptera: Latridiidae: Latridiinae) from Taiwan, with descriptions of two new species <p>The genus <em>Stephostethus</em> LeConte, 1878 of minute brown scavenger beetles (Coleoptera: Latridiidae: Latridiinae) is recorded from Taiwan for the first time, which extends the southernmost boundary of this genus in the Palaearctic realm. Two new species, <em>S. taiwanus</em> sp. nov. and <em>S. yuanfengensis</em> sp. nov., and one new record, <em>S. chinensis</em> (Reitter, 1877), are described in this study. A taxonomic key to the three species of this genus in Taiwan is also provided. The distributions, habitats and collecting methods of these three species, as well as the structure of the genital segments of this genus are discussed.</p> Yu-Hsiang Ho, Wolfgang H. Rücker, Mei-Ling Chan Copyright (c) 2021 Yu-Hsiang Ho, Wolfgang H. Rücker, Mei-Ling Chan Mon, 15 Feb 2021 02:10:38 -0800 Taxonomic review of the Dichotomius (Luederwaldtinia) agenor species group (Coleoptera: Scarabaeidae: Scarabaeinae) <p>The Neotropical <em>D. agenor</em> species group of the subgenus <em>Luederwaldtinia</em> Martínez, 1951 is taxonomically reviewed. After examination of specimens in collections, the <em>D. agenor</em> species group will consist of seventeen species, a leap from the former nine species: <em>D. agenor</em> (Harold, 1869), <em>D. amplicollis</em> (Harold, 1869), <em>D. belus</em> (Harold, 1880), <em>D. centralis</em> (Harold, 1869), <em>D. deyrollei</em> (Harold, 1869), <em>D. sagittarius</em> (Harold, 1869) stat. rev., <em>D. tristis</em> (Luederwaldt, 1923), <em>D. triquetrus</em> (Luederwaldt, 1923), <em>D. validipilosus</em> (Luederwaldt, 1931), <em>D. fornicatus</em> (Luederwaldt, 1931) [transferred to <em>D. lucasi</em> species group and to which <em>D. bosqi</em> (Pereira, 1941) is considered to be a new synonym], <em>D. inachoides</em> (Felsche, 1901) [transferred from the group <em>fisus</em> (<em>Selenocopris</em>)], <em>D. simplicicornis</em> (Luederwaldt, 1935) [transferred from the group <em>fisus</em> (<em>Selenocopris</em>)], <em>D. subaeneus</em> (Castelnau, 1840) [transferred from the <em>D. carbonarius</em> species group], <em>D. rafanunezi</em> sp. nov. from Mato Grosso, <em>D. henripittieri</em> sp. nov. from Venezuela and <em>D. enioi</em> sp. nov. from Guatemala and Costa Rica. This review was based on external morphology and characters of the male genitalia (aedeagus and internal sac). Descriptions of new species and redescriptions were made after examining the type-specimens of the already described species. Lectotype designations, species revalidations, redescriptions and new species descriptions are provided.</p> Santiago Montoya-Molina, Fernando Z. Vaz-de-Mello Copyright (c) 2021 Santiago Montoya-Molina, Fernando Z. Vaz-de-Mello Thu, 11 Feb 2021 01:10:43 -0800