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) Mon, 30 Nov 2020 00:26:42 -0800 OJS 60 Integrative description of Mesobiotus anastasiae sp. nov. (Eutardigrada, Macrobiotoidea) and first record of Lobohalacarus (Chelicerata, Trombidiformes) from the Republic of South Africa <p class="AbstractKeywordsStylesEJTFirstpage"><span lang="FR">A new species of the genus <em>Mesobiotus </em>is described from the Republic of South Africa using a traditional morphological approach (light and scanning electron microscopy) combined with molecular analysis (18S rRNA, 28S rRNA, ITS-2 and COI markers). <em>Mesobiotus anastasiae</em> sp. nov. differs from all known <em>Mesobiotus</em> species by having a unique combination of characters of the adult animals and the eggs. Adults of the new species have an oral cavity armature without elongate teeth in the second band, while the processes of the egg chorion have a basal collar and distinct rows of large pores. An updated key to the species of the genus <em>Mesobiotus</em>, including 66 of 70 currently described species, is given. An aquatic mite species from the <em>Lobohalacarus weberi</em> complex (freshwater Halacaridae) co-occurs with <em>M. anastasiae </em>sp. nov., suggesting that the newly described tardigrade inhabits constantly wet moss cushion habitats.</span></p> Denis V. Tumanov Copyright (c) 2020 Denis V. Tumanov Fri, 04 Dec 2020 03:07:15 -0800 Reinstatement of the Patagonian moss Ulota glabella Mitt. (Bryophyta, Orthotrichaceae) <p>In 1842, J.D. Hooker collected a number of mosses on Hermite Island (Cape Horn region). From one of those gatherings, <em>Hooker 141</em>, four species of Ulota have been described: <em>U.&nbsp;luteola</em>, <em>U.&nbsp;fuegiana</em>, <em>U.&nbsp;glabella</em>, and <em>U.&nbsp;eremitensis</em>. The first two species are widely accepted, whereas the identity of the latter two has been recently discussed, and the names are now synonymized under <em>U.&nbsp;fuegiana</em>, the more widely distributed species in the Tierra del Fuego archipelago. Our studies, based on recent collections of Orthotrichaceae from Patagonia, show that specimens different from those of <em>U.&nbsp;fuegiana</em> and agreeing with the protologues of both <em>U.&nbsp;glabella</em> and <em>U.&nbsp;eremitensis</em> are common in Patagonia. Comparisons with type material of all four names demonstrate that the type for <em>U.&nbsp;glabella</em> is in such bad condition that it cannot be used, and an epitype should be selected. In this paper, we comment on the whereabouts of the collection <em>Hooker 141</em> and the species described from it, discuss the distinct identity of <em>U.&nbsp;glabella</em> and its relationship with <em>U.&nbsp;eremitensis</em> as well as its differentiation from other species, present a diagnostic description of <em>U.&nbsp;glabella</em> and, finally, select an epitype to fix the application of this name.</p> Ricardo Garilleti, Belén Albertos, Isabel Draper, Juan Antonio Calleja, Francisco Lara Copyright (c) 2020 Ricardo Garilleti, Belén Albertos, Isabel Draper, Juan Antonio Calleja, Francisco Lara Thu, 03 Dec 2020 01:23:57 -0800 New and known Halichoanolaimus de Man, 1886 species (Nematoda: Selachinematidae) from New Zealand’s continental margin <p>The Selachinematidae is a globally distributed family of predatory nematodes found from shallow waters to the abyssal plain. Here, three new species of <em>Halichoanolaimus</em> de Man, 1886 (<em>H.&nbsp;ossilagulus</em> sp. nov., <em>H. funestus</em> sp. nov. and <em>H. pumilus</em> sp. nov.) and one known species (<em>H. ovalis </em>Ditlevsen, 1921) are described from the New Zealand continental margin, thus bringing the total number of selachinematid species recorded from the New Zealand region to 14 and the total number of species of <em>Halichoanolaimus</em> to 26. The range of<em> H</em>.<em> ovalis</em> is extended from the Southern Ocean to the Southwest Pacific Ocean (latitude 42° S to 53° S); the depth range of this species, which was originally described from the littoral zone, is also extended to 1061 m depth. Dorsosublateral rows of pore complexes and pseudocoelomocytes, features that have either rarely or not been recorded previously in the genus, were observed in all four species described here. The taxonomic significance of these features remains to be ascertained for the family and will require observations of other species of <em>Halichoanolaimus </em>and selachinematid genera. Pseudocoelomocytes and pore complexes may have an excretory function, thus aiding to process the waste products of digestion in selachinematid taxa with a blind intestine.</p> Daniel Leduc Copyright (c) 2020 Daniel Leduc Thu, 03 Dec 2020 01:06:04 -0800 The spider family Oecobiidae (Arachnida: Araneae) in Iran, Afghanistan and Turkmenistan <p>The taxonomic and faunistic status of the spider family Oecobiidae in Iran, Afghanistan and Turkmenistan is revised. A new species, namely <em>Uroctea gambronica</em> sp.&nbsp;nov. (♂) is described from southern Iran, and the male of <em>U. grossa</em> Roewer, 1960 is described and illustrated for the first time. Additionally, new faunistic data are provided, including the first records of <em>Oecobius putus</em> O. Pickard-Cambridge, 1876 and <em>U.&nbsp;grossa</em> in Afghanistan and Turkmenistan, respectively, and the re-evaluation of previously misidentified and questionable records of this family in the region. The known distribution ranges of all species are mapped for these three countries.</p> Alireza Zamani, Jan Bosselaers Copyright (c) 2020 Alireza Zamani, Jan Bosselaers Wed, 02 Dec 2020 00:26:17 -0800 Parasitoids of the genus Pholetesor Mason, 1981 (Hymenoptera: Braconidae: Microgastrinae) from the leafminers Lepidoptera, with the description of three new species from India <p><em>Pholetesor acrocercophagus</em> sp.&nbsp;nov., <em>P. camerariae</em> sp.&nbsp;nov. and <em>P. indicus </em>sp.&nbsp;nov.(Hymenoptera: Braconidae: Microgastrinae) are described as new to science. These three species were reared from <em>Acrocercops</em> sp., <em>Acrocercops phaeospora</em> Meyrick, 1916 and <em>Cameraria virgulata</em> Meyrick, 1914 (Lepidoptera: Gracillariidae), respectively. Characteristics of these new species and their affinities with related taxa are discussed. Data on habitat, host records and host plant species for all the parasitoid species is provided. A key to the Indian species of the genus <em>Pholetesor</em> Mason, 1981 reared from lepidopteran leafminers is also given.</p> Zubair Ahmad, Hamed A. Ghramh, Kavita Pandey Copyright (c) 2020 Zubair Ahmad, Hamed A. Ghramh, Kavita Pandey Tue, 01 Dec 2020 00:58:42 -0800 New fossil genus and new extant species of diatoms (Stephanodiscaceae, Bacillariophyceae) from Pleistocene sediments in the Neotropics (Guatemala, Central America): adaptation to a changing environment? <p>Several taxa of Stephanodiscaceae were found in the upper section of Pleistocene sediments from Lake Petén-Itzá (Guatemala). A new fossil genus <em>Cyclocostis</em> Paillès gen.&nbsp;nov. and new extant species <em>Discostella gabinii</em> Paillès &amp; Sylvestre sp. nov. are described. <em>Cyclocostis</em> gen.&nbsp;nov. is characterized by a strongly tangentially undulated valve surface, coarse unequal striation reaching a central punctum in the valve center, an absence of central lamina and domed criba, widely open alveoli with one median recessed costa bearing marginal fultoportulae and a single rimoportula all within a ring. A single valve face fultoportula is present on the raised part of the valve opposite the rimoportula. Differences relative to similar genera and the delimitation of a new genus are discussed. <em>Discostella gabinii</em> sp.&nbsp;nov. is distinguished by circular and flat valves, a small central area bearing 5 to &gt; 30 scattered large areolae giving a colliculate appearance, medium-sized alveoli, marginal fultoportulae on every 4–5th costa, a single rimoportula and internally smooth valve center. Differences to similar taxa in the genus <em>Discostella</em> are discussed. The succession of the species of <em>Cyclotella</em>, <em>Discostella</em> and <em>Cyclocostis</em> gen.&nbsp;nov. in our record could represent eco-phenotypic responses to particular environmental stress / change.</p> Christine Paillès, Florence Sylvestre, Alain Tonetto, Jean-Charles Mazur, Sandrine Conrod Copyright (c) 2020 Christine Paillès, Florence Sylvestre, Alain Tonetto, Jean-Charles Mazur, Sandrine Conrod Mon, 30 Nov 2020 00:20:13 -0800 The ‘red-tailed’ Lasioglossum (Dialictus) (Hymenoptera: Halictidae) of the western Nearctic <p>Sweat bees in the subgenus <em>Lasioglossum</em> (<em>Dialictus</em>) are one of the most diverse and abundant bee taxa, and a critically important component of bee biodiversity. Yet, the most basic taxonomic knowledge of these bees is lacking in many regions. As a step towards a better understanding of the <em>L.</em> (<em>Dialictus</em>) of the western Nearctic region, a revision of the ‘red-tailed’ <em>L.</em> (<em>Dialictus</em>) species was completed. Thirty-six species were revised, 20 of which are described as new, and two names are treated as junior subjective synonyms. Descriptions, figures, distribution maps, floral hosts, and keys to species for females and males are provided. The following 20 species are described as new: <em>Lasioglossum</em> (<em>Dialictus</em>) <em>arenisaltans</em> sp. nov., <em>L.</em> (<em>D.</em>) <em>argammon</em> sp. nov., <em>L.</em> (<em>D.</em>) <em> austerum</em> sp. nov., <em>L.</em> (<em>D.</em>) <em>cactorum</em> sp. nov., <em>L.</em> (<em>D.</em>) <em>cembrilacus</em> sp. nov., <em>L.</em> (<em>D.</em>) <em>clastipedion</em> sp. nov., <em>L.</em> (<em>D.</em>) <em>clavicorne</em> sp. nov., <em>L.</em> (<em>D.</em>) <em>decorum</em> sp. nov., <em>L.</em> (<em>D.</em>) <em>festinum</em> sp. nov., <em>L.</em> (<em>D.</em>) <em>imbriumbrae</em> sp. nov., <em>L.</em> (<em>D.</em>) <em>julipile</em> sp. nov., <em>L.</em> (<em>D.</em>) <em>lilianae</em> sp. nov., <em>L.</em> (<em>D.</em>) <em>meteorum</em> sp. nov., <em>L.</em> (<em>D.</em>) <em>miltolepoides</em> sp. nov., <em>L.</em> (<em>D.</em>) <em>minckleyi</em> sp. nov., <em>L.</em> (<em>D.</em>) <em>perditum</em> sp. nov., <em>L.</em> (<em>D.</em>) <em>rufornatum</em> sp. nov., <em>L.</em> (<em>D. </em>) <em>spivakae</em> sp. nov., <em>L.</em> (<em>D.</em>) <em> tessellatosum</em> sp. nov., and <em>L.</em> (<em>D.</em>) <em>torrens</em> sp. nov. Previously unknown males of <em>L.</em> (<em>D.</em>) <em>clematisellum</em> (Cockerell, 1904), <em>L.</em> (<em>D.</em>) <em>droegei</em> Gibbs, 2009, <em>L.</em> (<em>D.</em>) <em>kunzei</em> (Cockerell, 1898), and L. (<em>D.</em>) <em>pallidellum</em> (Ellis, 1914) are described and figured for the first time. <em>Lasioglossum</em> (<em>Dialictus</em>) <em>clarissimum</em> (Ellis, 1914) (= <em>Halictus clarissimus</em> Ellis, 1914) and <em>L.</em> (<em>D.</em>) <em>perexiguum</em> (Sandhouse, 1924) (= <em>Halictus</em> (<em>Chloralictus</em>) <em>perexiguus</em> Sandhouse, 1924) are new subjective junior synonyms of <em>L. mesillense</em> (Cockerell, 1898) (= <em>Halictus nymphalis</em> var. <em>mesillensis</em> Cockerell, 1898). A lectotype specimen is newly designated for <em>L. mesillense</em>, for which the location of the type material has not previously been known. The following five new records for Mexico are reported: <em>L. clematisellum</em>, <em>L. droegei</em>, <em>L. eophilus</em> (Ellis, 1914), <em>L. kunzei</em>, and <em>L. pallidellum</em>.</p> Joel Gardner, Jason Gibbs Copyright (c) 2020 Joel Gardner, Jason Gibbs Fri, 27 Nov 2020 00:00:00 -0800 A new species and depth record of bopyrid (Crustacea, Isopoda) from a squat lobster in the Kuril-Kamchatka Trench <p>The branchial parasitic isopod <em>Pleurocryptella altalis</em> sp. nov. (Bopyridae: Pseudioninae) is described from the squat lobster host <em>Munidopsis petalorhyncha</em> Baba, 2005. The new species is morphologically similar to <em>Pleurocryptella formosa</em> Bonnier, 1900 and <em>P. wolffi</em> Bourdon, 1972b but can be distinguished based on male characters (differences in head, pleon and uropods) and female characters (differences in barbula, pleopods and pleotelson). The parasite specimens (a female and male pair) were collected with the squat lobster host at a depth of 5060–5130 m from the Kuril-Kamchatka Trench, representing the deepest record for any of the 850+ described bopyrid isopod species and for any record of an infested host. Dichotomous identification keys to females and males of <em>Pleurocryptella</em> species and subspecies are provided.</p> Jason D. Williams, Christopher B. Boyko, Ivan N. Marin Copyright (c) 2020 Jason D. Williams, Christopher B. Boyko, Ivan N. Marin Thu, 26 Nov 2020 02:07:03 -0800 A new Dicranophragma (Diptera: Limoniidae) from a hypogeous environment in Catalonia (Iberian Peninsula) <p>A new species of Limnophilinae (Diptera: Limoniidae), <em>Dicranophragma (Brachylimnophila) relictum</em> Mederos sp.&nbsp;nov., is described. This is the third species of this genus recorded from the Iberian Peninsula. This new species was discovered in a cave in the Sant Llorenç del Munt i Serra de l’Obac Natural Park, Barcelona Province (Catalonia) and it is the first record of a species of this genus from a hypogeous environment. The absence of suitable ecological conditions for the survival of this new species, particularly in the vicinity of the cave, suggests that this population of <em>D. relictum</em> Mederos sp.&nbsp;nov. is isolated. <em>Dicranophragma relictum</em> Mederos sp.&nbsp;nov. is characterized by the following features: a general grey-to-greenish-grey coloration on its thorax and a dark-grey abdomen; wings more than four times longer than wide; pale-brown-to-yellowish tinted wings, with brown veins and a well-marked stigma; in the male genitalia the upper part of the aedeagus is acute when viewed laterally and is longer than the lower part. A key is provided for separating the three species of <em>Dicranophragma</em> known to be present in the Iberian Peninsula.</p> Jorge Mederos, Sergi Gago, Neus Brañas, Floren Fadrique, Berta Caballero-López, Glòria Masó Copyright (c) 2020 Jorge Mederos, Sergi Gago, Neus Brañas, Floren Fadrique, Berta Caballero-López, Glòria Masó Wed, 25 Nov 2020 02:19:24 -0800 Two new species of planthoppers from India (Hemiptera: Auchenorrhyncha: Delphacidae) in the genera Parasogata and Eoeurysa <p>The genus <em>Parasogata</em> Zhou, Yang &amp; Chen, 2018 is here reported from India represented by the new species <em>Parasogata sexpartita</em> sp.&nbsp;nov. collected in a recent exploration and survey of delphacids from Nagaland in northeastern India. A second species of <em>Eoeurysa</em> Muir, 1913 from India, the new species <em>Eoeurysa sagittaria</em> sp.&nbsp;nov., was found in Rampur, Una, Himachal Pradesh. Both new species are described with illustrations, and a molecular identification is given with the mtCOI gene sequence. A modified key to species of the genera is also provided.</p> N Ramya, Charles Bartlett, Naresh M. Meshram Copyright (c) 2020 Ramya N., Charles Bartlett, Naresh M. Meshram Mon, 23 Nov 2020 00:47:52 -0800