https://mapress.com/mt/issue/feed Megataxa 2025-12-01T13:16:58+13:00 Zhi-Qiang Zhang zhangz@landcareresearch.co.nz Open Journal Systems <p><strong>Megataxa</strong> is a premium open access journal for important works reporting major advances in taxonomy.</p> https://mapress.com/mt/article/view/megataxa.18.1.1 <p><strong>A revision of the former family Pseudopomyzidae (Diptera, Acalyptratae, Cypselosomatidae)</strong></p> 2025-12-01T12:40:54+13:00 TIFFANY YAU tyau@alumni.uoguelph.ca STEPHEN MARSHALL samarsha@uoguelph.ca MATTHIAS BUCK buckmb@gmail.com <p>The former family Pseudopomyzidae is revised. Morphological characters and multiple genes are used to assess relationships among the families of Nerioidea, concluding that the family Pseudopomyzidae as currently defined is paraphyletic with respect to Cypselosomatidae Hendel; the family Cypselosomatidae is therefore redefined to include the Pseudopomyzidae. The subgeneric classification of the large genus<em> Pseudopomyza</em> Strobl is updated by synonymizing the subgenera <em>Macalpinella</em> Papp and <em>Rhinopomyzella</em> Hennig with <em>Pseudopomyza s.s.,</em> and reinstating the subgenus <em>Heluscolia </em>(Harrison), resulting in four valid subgenera: <em>Apops</em> McAlpine, <em>Dete</em> McAlpine, <em>Heluscolia</em> and <em>Pseudopomyza s.s.</em> The subgenus<em> Apops</em> is composed of two previously included species (<em>P. flavitarsis </em>(Harrison) (New Zealand) and <em>P. arenae </em>McAlpine (Australia, Tasmania)) and three new species (<em>P. chilensis</em> Yau and Marshall (Chile), <em>P. medianentis</em> Yau and Marshall (Australia, Western Australia) and <em>P. nigritarsis</em> Yau and Marshall (New Zealand)). The subgenus <em>Dete</em> includes <em>P. collessi</em> McAlpine (Australia). The subgenus<em> Heluscolia</em> includes <em>P. antipoda</em> (Harrison) and <em>P. brevis</em> (Harrison), both from the New Zealand Subantarctic Islands. The subgenus <em>Pseudopomyza </em>includes <em>P. aristata </em>(Harrison) (New Zealand), <em>P. atrimana</em> (Meigen) (Palaearctic), <em>P. brevicaudata</em> (Harrison) (New Zealand), <em>P. brevifacies</em> (Papp) (Oriental and Palaearctic) and the <em>P. nigrimana</em> species group (formerly treated as the subgenus <em>Rhinopomyzella</em>). The <em>P. nigrimana</em> species group, shown here to be the sister group to <em>P. atrimana</em>, includes <em>P. albimana</em> (Hennig), <em>P. nigrimana </em>(Hennig) and fifteen new species (<em>P</em>.<em> adunca</em> Yau and Marshall, <em>P. ampliata</em> Yau and Marshall, <em>P. angustifrons</em> Yau and Marshall, <em>P. binaevia</em> Yau and Marshall, <em>P. brunneicacumen</em> Yau and Marshall,<em> P. cordata</em> Yau and Marshall, <em>P. cyathiformis</em> Yau and Marshall, <em>P. flavicacumen</em> Yau and Marshall, <em>P. gambiformis</em> Yau and Marshall, <em>P. inflexa</em> Yau and Marshall, <em>P. machaera</em> Yau and Marshall, <em>P. parabinaevia</em> Yau and Marshall, <em>P. proboscis</em> Yau and Marshall, <em>P. prolata</em> Yau and Marshall, <em>P. simulatrix</em> Yau and Marshall). </p> 2025-12-01T00:00:00+13:00 Copyright (c) 2025 Magnolia Press Limited https://mapress.com/mt/article/view/megataxa.18.1.2 <p><strong>Taxonomic revision of the spider genus <em>Azilia</em> Keyserling, 1881 (Araneae: Tetragnathidae)</strong></p> 2025-12-01T12:51:32+13:00 ANTONIO D. BRESCOVIT antonio.brescovit@butantan.gov.br EVERTON NEI LOPES RODRIGUES enl.rodrigues@unesp.br FERNANDO ÁLVAREZ-PADILLA fap@ciencias.unam.mx RICARDO OTT aracnomcn@gmail.com <p lang="en-US" align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman (TT), serif;"><span style="font-size: small;">The species of the spider genus <span style="font-family: Times New Roman (TT) Italic, serif;"><em>Azilia</em></span> Keyserling, 1881 from the Americas are revised. <span style="font-family: Times New Roman (TT) Italic, serif;"><em>Cardimia</em></span> Mello-Leitão, 1940 is removed from the synonymy with <span style="font-family: Times New Roman (TT) Italic, serif;"><em>Azilia</em></span> and is newly synonymized with <span style="font-family: Times New Roman (TT) Italic, serif;"><em>Diphya </em></span>Nicolet, 1849, with its type species, <span style="font-family: Times New Roman (TT) Italic, serif;"><em>Cardimia</em></span> <span style="font-family: Times New Roman (TT) Italic, serif;"><em>eximia</em></span> Mello-Leitão, 1940, considered synonymous of <span style="font-family: Times New Roman (TT) Italic, serif;"><em>Diphya bicolor </em></span>Vellard, 1926. The genus type species, <span style="font-family: Times New Roman (TT) Italic, serif;"><em>Azilia formosa</em></span> Keyserling 1881 described from Peru is redescribed. The type material is considered lost, but here a neotype is designed based on specimens next to the type locality in Peru. <span style="font-family: Times New Roman (TT) Italic, serif;"><em>Azilia boudeti</em></span> Simon, 1895, <span style="font-family: Times New Roman (TT) Italic, serif;"><em>Azilia marmorata</em></span> Mello-Leitão, 1948, <span style="font-family: Times New Roman (TT) Italic, serif;"><em>Arochoides integrans</em></span> Mello-Leitão, 1935 and <span style="font-family: Times New Roman (TT) Italic, serif;"><em>Cyrtophora vachoni</em></span> Caporiacco, 1954 had their types examined and are synonymized with<span style="font-family: Times New Roman (TT) Italic, serif;"><em> Azilia histrio</em></span> Simon, 1895. The males of <span style="font-family: Times New Roman (TT) Italic, serif;"><em>Azilia formosa</em></span> and <span style="font-family: Times New Roman (TT) Italic, serif;"><em>A. histrio</em></span> are described for the first time. <span style="font-family: Times New Roman (TT) Italic, serif;"><em>Azilia affinis</em></span> O. Pickard-Cambridge, 1893, <span style="font-family: Times New Roman (TT) Italic, serif;"><em>A. guatemalensis </em></span>O. Pickard-Cambridge, 1889, <span style="font-family: Times New Roman (TT) Italic, serif;"><em>A. rojasi</em></span> Simon, 1895 and <span style="font-family: Times New Roman (TT) Italic, serif;"><em>A. montana</em></span> Bryant, 1940 are redescribed and illustrated. Finally, eight new species are described based on males and females, including six from Brazil: <span style="font-family: Times New Roman (TT) Italic, serif;"><em>Azilia arrebitada</em></span> <span style="font-family: Times New Roman (TT) Bold, serif;"><strong>sp. nov.</strong></span>; <span style="font-family: Times New Roman (TT) Italic, serif;"><em>A. catita</em></span> <span style="font-family: Times New Roman (TT) Bold, serif;"><strong>sp. nov.</strong></span>; <span style="font-family: Times New Roman (TT) Italic, serif;"><em>A. fabulosa</em></span> <span style="font-family: Times New Roman (TT) Bold, serif;"><strong>sp. nov.</strong></span>; <span style="font-family: Times New Roman (TT) Italic, serif;"><em>A. guapa</em></span> <span style="font-family: Times New Roman (TT) Bold, serif;"><strong>sp. nov.</strong></span>; <span style="font-family: Times New Roman (TT) Italic, serif;"><em>A. joinha</em></span> <span style="font-family: Times New Roman (TT) Bold, serif;"><strong>sp. nov.</strong></span>; <span style="font-family: Times New Roman (TT) Italic, serif;"><em>A. supimpa</em></span> <span style="font-family: Times New Roman (TT) Bold, serif;"><strong>sp. nov.</strong></span> and two from Mexico:<span style="font-family: Times New Roman (TT) Italic, serif;"><em> Azilia esplendida</em></span> <span style="font-family: Times New Roman (TT) Bold, serif;"><strong>sp. nov.</strong></span>, and <span style="font-family: Times New Roman (TT) Italic, serif;"><em>A. hermosa</em></span> <span style="font-family: Times New Roman (TT) Bold, serif;"><strong>sp. nov.</strong></span></span></span></span></p> 2025-12-01T00:00:00+13:00 Copyright (c) 2025