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) Thu, 13 May 2021 00:33:37 -0700 OJS 60 Integrative taxonomy reveals a rare and new cusk-eel species of Luciobrotula (Teleostei, Ophidiidae) from the Solomon Sea, West Pacific <p>With six valid species, <em>Luciobrotula</em> is a small genus of the family Ophidiidae, commonly known as cusk-eels. They are benthopelagic fishes occurring at depths ranging from 115–2300 m in the Atlantic, Indian, and Pacific Oceans. Among them, <em>Luciobrotula bartschi</em> is the only known species in the West Pacific. Three specimens of <em>Luciobrotula</em> were collected from the Philippine Sea, Bismarck Sea, and Solomon Sea in the West Pacific during the AURORA, PAPUA NIUGINI, and MADEEP expeditions under the <em>Tropical Deep-Sea Benthos</em> program, and all of them were initially identified as <em>L. bartschi</em>. Subsequent examination with integrative taxonomy indicates that they belong to two distinct species, with the specimen collected from the Solomon Sea representing a new species, which is described here. In terms of morphology, <em>Luciobrotula polylepis</em> sp. nov. differs from its congeners by having a relatively longer lateral line (end of the lateral line below the 33rd dorsal-fin ray) and fewer vertebrae (abdominal vertebrae 13, total vertebrae 50). In the inferred <em>COI</em> gene tree, the two western Pacific species of <em>Luciobrotula</em> do not form a monophyletic group. The genetic K2P distance between the two species is 13.8% on average at the <em>COI</em> locus.</p> Man-Kwan Wong, Mao-Ying Lee, Wei-Jen Chen Copyright (c) 2021 Man-Kwan Wong, Mao-Ying Lee, Wei-Jen Chen Mon, 17 May 2021 02:49:56 -0700 Four new species and new records of Platygastrinae (Hymenoptera: Platygastridae) from Iran <p>The following four species new to science are described: <em>Platygaster azarbaijanica</em> Buhl &amp; Asadi sp. nov., <em>Platygaster lotfalizadehi</em> Buhl &amp; Asadi sp. nov., <em>Platygaster karimpouri</em> Asadi &amp; Buhl sp. nov. and <em>Synopeas calecai</em> Buhl &amp; Asadi sp. nov. Diagnostic characters are discussed, and figures are provided to distinguish the new species. In addition, ten species of Platygastrinae Howard, 1892 belonging to the genera <em>Platygaster</em> Latreille, 1809, <em>Synopeas</em> Förster, 1856 and <em>Leptacis</em> Förster, 1856 are reported as new records for the fauna of Iran. Four species of <em>Platygaster</em> and one species of <em>Synopeas</em> are recorded as ʻconferʼ.</p> Maryam Asadi-Farfar, Younes Karimpour, Hossein Lotfalizadeh, Peter Neerup Buhl Copyright (c) 2021 Maryam Asadi-Farfar, Younes Karimpour, Hossein Lotfalizadeh, Peter Neerup Buhl Fri, 14 May 2021 00:01:24 -0700 Taxonomic status of Macaronesian Eucyclops agiloides azorensis (Arthropoda: Crustacea: Copepoda) revisited – morphology suggests a Palearctic origin <p>Macaronesia, with the exception of the Azores, is one of the few Palearctic provinces where basic taxonomic information on the freshwater copepods is still lacking. We redescribed <em>Eucyclops azorensis</em>, a cyclopid crustacean so far known only in the Azores, and report the occurrence of this species in Algeria and Madeira Island. <em>Eucyclops azorensis</em> was formerly considered to be a subspecies of <em>E.&nbsp;agiloides</em> (East Africa); therefore, the latter species is redescribed here as well based on type and non-type material. Morphological comparisons between <em>E.&nbsp;azorensis</em>,<em> E.&nbsp;agiloides</em> and other taxa (<em>E.&nbsp;serrulatus</em> and <em>E.&nbsp;roseus</em>), assumed to be closely related to our target species, support a closer relationship between <em>E.&nbsp;azorensis</em> and <em>E.&nbsp;serrulatus</em> (Palearctic) than between<em> E.&nbsp;azorensis</em> and <em>E.&nbsp;agiloides</em> (Afrotropical). The slight differences between<em> E.&nbsp;azorensis</em> and <em>E.&nbsp;serrulatus</em> in the surface ornamentation of the antennal coxobasis and intercoxal sclerites of legs 1 and 4 suggest a relatively young separation of these lineages.<em> Eucyclops agiloides</em> is morphologically close to <em>E.&nbsp;roseus</em> (temperate and subtropical Asia, southeastern Europe, East Africa). The numerous and clear-cut differences indicate a species rather than subspecies-level differentiation between <em>E.&nbsp;agiloides</em> and<em> E.&nbsp;roseus</em>, unlike what was formerly proposed in the taxonomic literature.</p> Maria Hołyńska, Łukasz Sługocki, Souad Ghaouaci, Mounia Amarouayache Copyright (c) 2021 Maria Hołyńska, Łukasz Sługocki, Souad Ghaouaci, Mounia Amarouayache Thu, 13 May 2021 00:30:29 -0700 Revision of the genus Miridiba Reitter, 1902 (Coleoptera, Scarabaeidae, Melolonthinae): genital morphotypes and new taxonomic data <p>The genus <em>Miridiba</em> Reitter, 1902, of phytophagous chafers from Asia, is revised based on external morphological and genital (male and female) characters. In this study, a total fifty-eight species of<em> Miridiba </em>were examined, and the genus is redescribed. Male genital characters of <em>Miridiba</em>, especially the morphology of parameres and endophallus, are studied in depth herein. The female genitalia of <em>Miridiba</em> are studied and described in detail for the first time. According to genital characters, nine genital morphotypes, including fifty-four species, are established under the genus <em>Miridiba</em>. Sixty-seven type specimens are studied. <em>Miridiba gressitti</em> (Frey, 1970) comb. nov., <em>Miridiba borneensis</em> (Moser, 1918) comb. nov., <em>Miridiba coxalis</em> (Arrow, 1944) comb. nov., <em>Miridiba rugaticollis</em> (Moser, 1913) comb.&nbsp;nov., <em>Miridiba nigrescens</em> (Moser, 1916) comb. nov., <em>Miridiba scutata</em> (Reitter, 1902) comb.&nbsp;nov., <em>Miridiba ciliatipennis </em>(Moser, 1903) comb. nov. and <em>Miridiba brunneipennis </em>(Moser, 1916) comb. nov. are transferred from <em>Holotrichia</em>. <em>Holotrichia dalatensis</em> Frey, 1970 is transferred to <em>Miridiba</em> as a synonym of <em>Miridiba sinensis </em>(Hope, 1842). Four junior subjective synonyms are proposed: <em>Miridiba pilosella</em> (Moser, 1908) (=<em> Holotrichia formosana</em> Moser, 1909), <em>Miridiba sinensis</em> (=&nbsp;<em>Holotrichia dalatensis</em> Frey, 1970), <em>Miridiba scutata</em> (= <em>Holotrichia scutulata</em> Dalla Torre, 1912 and <em>Miridiba lassallei</em> Keith, 2010). <em>Miridiba frontalis</em> (Fairmaire, 1886) is resurrected as a valid species. A key to 51 of the 58 valid species of <em>Miridiba</em> is presented.</p> Chuan-bu Gao, María Milagro Coca-Abia Copyright (c) 2021 Chuan-bu Gao, María Milagro Coca-Abia Wed, 12 May 2021 02:24:13 -0700 Taxonomic review of the genus Erythrocricus Schubart, 1962 (Diplopoda, Spirobolida, Rhinocricidae) <p>We review the genus <em>Erythrocricus</em> Schubart, 1962 based on the type material of the species <em>Erythrocricus sanguineostriatus</em> (Schubart, 1962). We propose a new diagnosis, redescribe the type species, and propose a new synonymy and a new combination. In addition, a male-based key to both species recognized, including <em>Erythrocricus electrofasciatus</em> (Schubart, 1957), comb.&nbsp;nov. ex. <em>Rhinocricus</em>, is given.</p> Patrícia Elesbão Silva Rodrigues, Everton Nei Lopes Rodrigues Copyright (c) 2021 Patrícia Elesbão Silva Rodrigues, Everton Nei Lopes Rodrigues Tue, 11 May 2021 00:12:20 -0700 Sinetectula gen. nov., a new genus of Pisaniidae (Gastropoda: Buccinoidea) from the tropical Indian and Pacific Oceans <p>The genus <em>Sinetectula</em> gen. nov. is proposed to accommodate <em>Triton egregius</em> Reeve, 1844, <em>Buccinum cinis</em> Reeve, 1846, <em>Buccinum nigricostatum</em> Reeve, 1846, <em>Buccinum</em> (<em>Pollia</em>) <em>farinosum</em> Gould, 1850, <em>Pisania naevosa</em> Martens, 1880, <em>Pollia shepstonensis</em> Tomlin, 1926 and one still undescribed species. These species are discussed and compared, and remarks on their biogeography are provided. The occasional appearance of a labral denticle is recorded and the morphological variability of the group is discussed. The radula of <em>S. egregius</em> gen. et comb. nov. is described.</p> Koen Fraussen, Geerat J. Vermeij Copyright (c) 2021 Koen Fraussen, Geerat J. Vermeij Mon, 10 May 2021 08:20:40 -0700 Litinium gludi sp. nov. (Nematoda, Oxystominidae) from Kermadec Trench, Southwest Pacific Ocean <p>Recent work on the taxonomy of nematodes in Southwest Pacific Ocean trenches has led to the discovery of taxa which so far appear to be restricted to the oceans’ deepest environments. Here, <em>Litinium gludi</em> sp.&nbsp;nov. is described based on specimens obtained from a deep basin within the Kermadec Trench at 9540&nbsp;m water depth. The new species differs from other species of the genus in having a conico-cylindrical tail, papillose labial sensilla, and heart- or leaf-shaped amphideal fovea. Both SSU and LSU phylogenetic analyses provide strong support for the placement of the new species within a clade containing both <em>Thalassoalaimus</em> and <em>Litinum</em>, and within Oxystomininae, which is consistent with the structure of the female reproductive system with only one posterior ovary in this subfamily. Our molecular analyses also indicate that the new species is most closely related to <em>Thalassoalaimus</em> despite lacking a caudal capsule, the main trait characterizing the latter genus, and despite being most morphologically similar to <em>Litinium</em>, particularly in the unusual shape of the amphideal fovea. However, given the changing definitions of the closely-related genera <em>Thalassoalaimus</em> and <em>Litinium</em> in recent years, available GenBank sequences may have been misidentified, which makes the interpretation of molecular phylogenetic analyses problematic. Given the current morphological definitions of <em>Litinium</em> and <em>Thalassoalaimus</em>, we choose to place the new species within <em>Litinium</em>, despite the apparently contradictory findings of molecular phylogenetic analyses. The placement of <em>Cricohalalaimus</em> in a clade with <em>Thalassoalaimus</em> and <em>Litinium</em> in both SSU and LSU analyses indicates that this genus should be placed within the Oxystomininae and not the Halalaiminae as in the current classification. This new proposed grouping is consistent with variation in the structure of the female reproductive system, a feature which appears more taxonomically informative than amphid shape for subfamily-level classification.</p> Daniel Leduc, Zeng Qi Zhao Copyright (c) 2021 Daniel Leduc, Zeng Qi Zhao Fri, 07 May 2021 04:06:36 -0700 Two new species of the genus Oryctopterus (Orthoptera: Stenopelmatidae: Oryctopinae) from India, with some notes on biology <p>The genus <em>Oryctopterus</em> Karny, 1937 (Orthoptera, Stenopelmatidae, Oryctopinae) is reported from India for the first time and two new species, <em>Ot.&nbsp;varuna</em> sp.&nbsp;nov. and <em>Ot.&nbsp;yeshwanthi</em> sp.&nbsp;nov. are described. Male and female external genitalia of <em>Ot.&nbsp;varuna</em> sp.&nbsp;nov. and female genitalia of <em>Ot.&nbsp;yeshwanthi</em> sp.&nbsp;nov. are figured and described. Notes on seasonality, food habits and behavior of <em>Ot.&nbsp;varuna</em> sp.&nbsp;nov. are provided.</p> S.R. Hiremath, K.D. Prathapan Copyright (c) 2021 S.R. Hiremath, K.D. Prathapan Fri, 07 May 2021 01:47:06 -0700 On the genus Hamma Buckton, 1905 (Hemiptera: Auchenorrhyncha) in Equatorial Africa, with descriptions of three new species <p>As part of the classification of Membracidae from Gabon and Equatorial Guinea, a new species group of the genus <em>Hamma</em> Buckton, 1905 is proposed, and three new species are described: <em>Hamma nigrum</em> sp.&nbsp;nov., <em>Hamma spinellii</em> sp.&nbsp;nov. and <em>Hamma caneparii</em> sp.&nbsp;nov. An updated checklist and key to the genus <em>Hamma</em> are provided.</p> Antonio Durante, Sandrine Mariella Bayendi Loudit, Antonio Susini Copyright (c) 2021 Antonio Durante, Sandrine Mariella Bayendi Loudit, Antonio Susini Thu, 06 May 2021 02:50:25 -0700 On ant-like Synemosyna Hentz, 1846 spiders from Bolivia, with indirect evidence for polymorphic mimicry complexes (Araneae: Salticidae: Simonellini) <p>Three species of <em>Synemosyna</em> Hentz, 1846 were recorded during a survey in five Bolivian forest ecoregions: <em>S. aurantiaca</em> (Mello-Leitão, 1917), <em>S. myrmeciaeformis</em> (Taczanowski, 1871) and <em>S. nicaraguaensis</em> Cutler, 1993. <em>Synemosyna aurantiaca</em> and <em>S. nicaraguaensis</em> are recorded for Bolivia for the first time and the previously unknown male of <em>S. nicaraguaensis</em> is described and illustrated. The habitus and the genitalia of the female of <em>S. myrmeciaeformis</em> are illustrated for the first time. <em>Synemosyna aurantiaca</em> occurs in semi-deciduous forests south of 18° S and <em>S. myrmeciaeformis</em> in the Bolivian Yungas forest and ecoregions of the Amazon biome north of 16° S. <em>Synemosyna nicaraguaensis</em> is possibly an Andean species that enters into the moist Isthmian forests of Central America. Several potential mimicry complexes with two broad patterns were observed: sex-specific polychromatic mimicry (<em>S. nicaraguaensis</em>), and transformational mimicry involving smaller orange and larger brown to dark-brown forms (<em>S. aurantiaca</em> and <em>S. myrmeciaeformis</em>).</p> Robert Perger, Gonzalo D. Rubio, Charles R. Haddad Copyright (c) 2021 Robert Perger, Gonzalo D. Rubio, Charles R. Haddad Wed, 05 May 2021 01:42:50 -0700