Latest Articles from Zoosystematics and Evolution Latest 30 Articles from Zoosystematics and Evolution https://zse.pensoft.net/ Fri, 29 Mar 2024 08:39:35 +0200 Pensoft FeedCreator https://zse.pensoft.net/i/logo.jpg Latest Articles from Zoosystematics and Evolution https://zse.pensoft.net/ Four new species and one newly-recorded species of the genus Opopaea Simon, 1892 (Araneae, Oonopidae) from southern China, with a key to Chinese species https://zse.pensoft.net/article/120305/ Zoosystematics and Evolution 100(2): 325-347

DOI: 10.3897/zse.100.120305

Authors: Yang Zhou, Dongju Bian, Zizhong Yang, Zhisheng Zhang, Yanfeng Tong, Shuqiang Li

Abstract: Five species of the genus Opopaea Simon, 1892 from southern China are recognised, including four new species: Opopaea mangun Tong & Li, sp. nov., Opopaea taibao Tong & Yang, sp. nov., Opopaea wenshan Tong & Zhang, sp. nov. and Opopaea yuhuang Tong & Li, sp. nov. from Yunnan and one newly-recorded species: Opopaea foveolata Roewer, 1963 from Hainan. Detailed diagnoses, descriptions and photomicroscopy images of new species are provided, based on specimens of both sexes. A key to species of the genus Opopaea from China is provided.

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Research Article Wed, 27 Mar 2024 19:46:49 +0200
Taxonomic study of four closely-related species of the Pholcus yichengicus species group (Araneae, Pholcidae) from China’s Qinling Mountains: An integrated morphological and molecular approach https://zse.pensoft.net/article/115633/ Zoosystematics and Evolution 100(1): 279-289

DOI: 10.3897/zse.100.115633

Authors: Lan Yang, Qiaoqiao He, Zhiyuan Yao

Abstract: Four morphologically similar species of the Pholcus yichengicus species group, occurring in geographic proximity of China’s Qinling Mountains, were recognised, based on morphology and four methods of molecular species delimitation. They comprise two new species, namely Pholcus ankang sp. nov. and P. baoji sp. nov. and two previously described species: P. ovatus Yao & Li, 2012 and P. taibaiensis Wang & Zhu, 1992. Their DNA barcodes were obtained to estimate p-distances and K2P distances. In addition, an identification key for the four closely-related species is presented.

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Research Article Thu, 14 Mar 2024 14:57:37 +0200
A survey of the genus Orchestina Simon, 1882 (Araneae, Oonopidae) from Xishuangbanna, China, with descriptions of five new species https://zse.pensoft.net/article/117968/ Zoosystematics and Evolution 100(1): 255-277

DOI: 10.3897/zse.100.117968

Authors: Chenxue Song, Yanfeng Tong, Dongju Bian, Shuqiang Li

Abstract: Five new species and three known species of the genus Orchestina Simon, 1882 are recorded from Xishuangbanna, Yunnan Province: O. clavulata Tong & Li, 2011 (♂), O. colubrina Liu, Henrard & Xu, 2019 (♂♀), O. concava Tong & Li, sp. nov. (♂), O. menglun Tong & Li, sp. nov. (♂), O. subclavulata Tong & Li, sp. nov. (♂), O. truncatula Tong & Li, 2011 (♂♀), O. wengnan Tong & Li, sp. nov. (♂) and O. xui Tong & Li, sp. nov. (♂♀). The males of O. colubrina Liu, Henrard & Xu, 2019 is described for the first time. An identification key to species of the genus Orchestina from Xishuangbanna is provided.

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Research Article Fri, 8 Mar 2024 16:25:48 +0200
A survey of Pholcus spiders (Araneae, Pholcidae) from the Qinling Mountains of central China, with descriptions of seven new species https://zse.pensoft.net/article/116759/ Zoosystematics and Evolution 100(1): 199-221

DOI: 10.3897/zse.100.116759

Authors: Lan Yang, Chang Fu, Yaxuan Zhang, Qiaoqiao He, Zhiyuan Yao

Abstract: We report 18 spider species of the genus Pholcus Walckenaer, 1805 from a survey in the Qinling Mountains of central China. They belong to four species groups and include seven species new to science: Pholcus jiaozuo Yang & Yao, sp. nov. (♂♀) in the taishan species group; P. luonan Yang & Yao, sp. nov. (♂♀), P. luoyang Yang & Yao, sp. nov. (♂♀), P. lushan Yang & Yao, sp. nov. (♂♀), P. shangluo Yang & Yao, sp. nov. (♂♀), P. weinan Yang & Yao, sp. nov. (♂♀) and P. yuncheng Yang & Yao, sp. nov. (♂♀) in the yichengicus species group. Detailed diagnoses, descriptions, photomicroscopy images and DNA barcodes of all new species are provided. Our study will make a significant contribution to understanding species diversity and zoogeography of the region.

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Research Article Mon, 26 Feb 2024 16:33:23 +0200
A new species of Ditha (Pseudoscorpiones, Chthoniidae, Tridenchthoniinae) from the Western Ghats of India, with an identification key for the genus https://zse.pensoft.net/article/110020/ Zoosystematics and Evolution 100(1): 1-8

DOI: 10.3897/zse.100.110020

Authors: Kyung-Hoon Jeong, Danilo Harms, Jithin Johnson

Abstract: A new species of the pseudoscorpion genus Ditha Chamberlin, 1929, is described from Kerala State, India. A detailed morphological description, diagnostic features, and illustrations of Ditha (Paraditha) shivanparaensis Jeong, Harms & Johnson, sp. nov. are provided. The current distribution of all the known Ditha species is mapped, and an identification key for the genus is provided.

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Research Article Fri, 26 Jan 2024 19:00:01 +0200
A survey of Dysderella Dunin, 1992 (Araneae, Dysderidae), with a new species from Iran https://zse.pensoft.net/article/104613/ Zoosystematics and Evolution 99(2): 337-344

DOI: 10.3897/zse.99.104613

Authors: Alireza Zamani, Yuri M. Marusik, Tamás Szűts

Abstract: The dysderid spider genus Dysderella Dunin, 1992 is surveyed. The genus currently comprises two species: D. caspica (Dunin, 1990) from Azerbaijan and North Caucasus and D. transcaspica (Dunin & Fet, 1985) from Turkmenistan and north-eastern Iran. Herein, D. elburzica sp. nov. is described based on male specimens collected in Tehran Province, northern Iran. All three species are illustrated and their distributions are mapped.

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Research Article Wed, 7 Jun 2023 11:02:03 +0300
A review of the genus Sernokorba Kamura, 1992 (Araneae, Gnaphosidae) https://zse.pensoft.net/article/103061/ Zoosystematics and Evolution 99(2): 325-335

DOI: 10.3897/zse.99.103061

Authors: Nikolett Gallé-Szpisjak, Róbert Gallé, Tamás Szűts

Abstract: The gnaphosid spider genus Sernokorba Kamura, 1992 is reviewed. While Sernokorba pallidipatellis (Bösenberg and Strand 1906) and Sernokorba fanjing Song, Zhu & Zhang, 2004, occur in the Far East and the Japanese archipelago, Sernokorba tescorum (Simon, 1914) is known from Europe. We here describe a fourth species, Sernokorba betyar sp. nov. (male and female) from the forest steppe vegetation in southern Hungary in Central Europe. Digital images, comparative drawings (except for S. fanjing) and a distribution map are provided for all the species, and an identification key is compiled. The cheliceral dentation as diagnostic character and its interpretation are discussed.

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Research Article Fri, 2 Jun 2023 16:11:18 +0300
Kangaraneus, a new genus of orb-weaving spider from Australia (Araneae, Araneidae) https://zse.pensoft.net/article/101417/ Zoosystematics and Evolution 99(2): 307-323

DOI: 10.3897/zse.99.101417

Authors: Pedro de S. Castanheira, Volker W. Framenau

Abstract: A new Australian genus in the orb-weaving spider family Araneidae Clerck, 1757 is described, Kangaraneus gen. nov., with K. arenaceus (Keyserling, 1886) comb. nov. (New South Wales, Queensland, South Australia, Victoria and Western Australia) as the type species and also including two other species: Kangaraneus amblycyphus (Simon, 1908) comb. nov. (Australian Capital Territory, New South Wales, Queensland, South Australia, Victoria and Western Australia) and K. farhani sp. nov. (Australian Capital Territory, New South Wales, South Australia, Victoria and Tasmania). The new genus is included in the informally termed Australasian ‘backobourkiine’ clade due to the presence of its putative synapomorphies, specifically a single patellar macroseta on the male pedipalp and its median apophysis forming an arch over the radix. It includes medium-sized orb-weaving spiders (total length 3–12 mm) with distinct humeral humps on the almost triangular abdomen. Therefore, within the backobourkiines, it is somatically most similar to Novakiella Court & Forster, 1993 but differs considerably in male genitalic characters, including a C-shaped median apophysis with an acute tip. Genitalia are most similar to those in Quokkaraneus Castanheira & Framenau, 2023 from which the new genus differs by the lack of the white colouration and the shape of the abdomen.

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Research Article Wed, 31 May 2023 18:12:51 +0300
A new species of Anatextrix Kaya, Zamani, Yağmur & Marusik, 2023 (Araneae, Agelenidae, Textricini) from southern Türkiye, with a remarkable morphology of the male palpal femur https://zse.pensoft.net/article/103893/ Zoosystematics and Evolution 99(2): 299-305

DOI: 10.3897/zse.99.103893

Authors: Rahşen S. Kaya, Alireza Zamani, Ersen Aydın Yağmur, Yuri M. Marusik

Abstract: Anatextrix monstrabilis sp. nov. (Araneae: Agelenidae) is described and illustrated, based on male and female specimens collected from Adana Province, Türkiye. The new species has an L-shaped male palpal femur bearing multiple apophyses, which is a rare trait in spiders. Anatextrix monstrabilis sp. nov. is the second species of the recently described genus Anatextrix Kaya, Zamani, Yağmur & Marusik, 2023, currently known only from southern Türkiye.

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Research Article Thu, 25 May 2023 14:40:41 +0300
First record of the false violin spider of the family Drymusidae (Araneae, Synspermiata, Scytodoidea) from Venezuela, with the description of a new species https://zse.pensoft.net/article/99227/ Zoosystematics and Evolution 99(1): 273-280

DOI: 10.3897/zse.99.99227

Authors: Osvaldo Villarreal, David Chamé-Vázquez

Abstract: Drymusa huberi sp. nov. is described and illustrated, based on both sexes with specimens collected in a tropical dry forest in Yaracuy State, Venezuela. This new species constitutes the first record of the family Drymusidae for this Neotropical country and fills the distribution gap of the family in the north of South America. Furthermore, we provide the first identification key for all species of Drymusa Simon, 1892.

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Research Article Wed, 29 Mar 2023 17:32:35 +0300
A new species of the genus Siler Simon, 1889 (Araneae, Salticidae, Chrysillini) from India https://zse.pensoft.net/article/99285/ Zoosystematics and Evolution 99(1): 209-216

DOI: 10.3897/zse.99.99285

Authors: John T. D. Caleb, Ayush Parag, Aniruddha Datta-Roy

Abstract: A new chrysilline jumping spider species belonging to the genus Siler Simon, 1889 is described from Odisha, India. Detailed morphological descriptions, illustrations of the male palp and female genitalia and phylogenetic relationships of the new Siler species are presented. Phylogenetic analysis reveals that the new species is sister to a clade of predominantly Southeast Asian Siler species. Furthermore, the results indicate the presence of multiple cryptic species masquerading as S. semiglaucus sensu lato. We also briefly discuss some unique behavioural observations on the newly-described species.

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Research Article Thu, 9 Mar 2023 14:09:36 +0200
Additions to the distribution of Sudanese scorpions https://zse.pensoft.net/article/90875/ Zoosystematics and Evolution 99(1): 45-53

DOI: 10.3897/zse.99.90875

Authors: Manal Siyam, Jason A. Dunlop, František Kovařík, Abubakr Mohammad

Abstract: Six species of scorpion (Arachnida: Scorpiones) are documented from eighteen localities in seven different states within the Republic of the Sudan. Combining this new data with historical records in the Sudan Natural History Museum and the published literature enables the first provisional distribution maps for Sudanese scorpions. New state records could be added for three medically significant species: Androctonus amoreuxi (Audouin, 1826) from Khartoum, North Kordofan and North Darfur, Leiurus quinquestriatus (Ehrenberg, 1829) from Kassala, River Nile, White Nile and North Darfur, and Parabuthus abyssinicus (Pocock, 1901) from Kassala. Among the less venomous species, we offer new state records for Buthacus leptochelys (Ehrenberg, 1829) in White Nile State, for Compsobuthus werneri (Birula, 1908) in North Kordofan, White Nile and Kassala States and for Orthochirus olivaceus (Karsch, 1881) in River Nile, Northern and Kassala States. Further information about the taxonomy, distribution and toxicity of Sudanese scorpions is presented.

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Research Article Fri, 6 Jan 2023 17:47:42 +0200
An unexpected occurrence: discovery of the genus Cybaeopsis Strand, 1907 in Europe with the description of a new species from Italy (Arachnida, Araneae, Amaurobiidae) https://zse.pensoft.net/article/90858/ Zoosystematics and Evolution 98(2): 377-385

DOI: 10.3897/zse.98.90858

Authors: Francesco Ballarin, Paolo Pantini

Abstract: We report on the unexpected finding of a new species of the genus Cybaeopsis Strand, 1907, C. lodovicii sp. nov. from the Northern Apennine Mountains in Italy. This is the first documented record of a Cybaeopsis species in Europe. Other currently known species of this genus have been previously recorded in North America, the Russian Far-East and Japan. The new species is illustrated and described based on both sexes. Another species from Portugal, Cybaeopsis theoblicki (Bosmans, 2021) comb. nov., recently described in the genus Callobius Chamberlin, 1947, is hereby transferred to Cybaeopsis on the basis of morphological characters. An updated key to the European genera of Amaurobiidae is provided.

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Research Article Tue, 20 Sep 2022 18:29:50 +0300
Pycnogonida (Arthropoda) from Museu de Ciências Naturais, Rio Grande do Sul, Brazil https://zse.pensoft.net/article/83671/ Zoosystematics and Evolution 98(2): 305-312

DOI: 10.3897/zse.98.83671

Authors: Rudá Amorim Lucena, Martin Lindsey Christoffersen

Abstract: Five species were identified in the studied collection: Colossendeis megalonyx Hoek, 1881, first record for Uruguay, Ascorhynchus corderoi du Bois-Reymond Marcus, 1952 and Pallenopsis candidoi Mello-Leitão, 1949, with extended ranges, Pallenopsis patagonica (Hoek, 1881), a species complex recently analysed with molecular data and Ammothea tetrapoda, recorded previously for Uruguayan waters. Our study clarifies records based on morphology, provides new data on distributions and species ranges and correlates species with ecological conditions.

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Research Article Wed, 20 Jul 2022 13:23:54 +0300
Rediscovery after 25 years – first photographic documentation and DNA barcoding of the deep-sea pycnogonid species Ascorhynchus hippos Turpaeva, 1994 (Chelicerata, Pycnogonida, Ascorhynchidae) from the Kuril-Kamchatka Trench https://zse.pensoft.net/article/84864/ Zoosystematics and Evolution 98(2): 257-262

DOI: 10.3897/zse.98.84864

Authors: Lisa Wolf, Roland R. Melzer, Tobias Lehmann

Abstract: The female specimen of Ascorhynchus hippos Turpaeva, 1994 was collected in 2015 during the Russian-German deep-sea expedition SokhoBio (Sea of Okhotsk Biodiversity Studies) at the abyssal western slope of the Kuril-Kamchatka Trench at a depth of 4469 m using a camera-epibenthic sledge. It is the first record of this species since the discovery of one female holotype and one male paratype in 1990. Ascorhynchus hippos is easily distinguishable from its congeners by the two prominent tubercles above the chelifore insertions, the absence of the eye tubercle and eyes, and the tubercles on the mid-dorsal trunk segments and the lateral processes. Here we present the first photographic documentation of all three known specimens of A. hippos and the COI barcode of the new specimen is also provided.

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Short Communication Wed, 6 Jul 2022 16:38:50 +0300
Taxonomy of the genus Cyrtogrammomma Pocock, 1895 (Araneae, Mygalomorphae, Theraphosidae) with a description of a new species from Brazil https://zse.pensoft.net/article/85212/ Zoosystematics and Evolution 98(2): 181-199

DOI: 10.3897/zse.98.85212

Authors: Hector Manuel Osorio Gonzalez-Filho, Rafael Fonseca-Ferreira, Antonio Domingos Brescovit, José Paulo Leite Guadanucci

Abstract: The genus Cyrtogrammomma Pocock, 1895 was proposed based on specimen samples from Monte Roraima, Guyana, and allocated in the family Barychelidae. However, the most recent cladistic analysis transferred Cyrtogrammomma to Theraphosidae. Herein, we amended the diagnosis and description of C. monticola, providing a redescription of the male, and new illustrations, including the description of a new cuticular structure consisting of thick and stiff setae on dorsal metatarsi I and II of females. Moreover, we diagnose, describe and illustrate a new species of Cyrtogrammomma from northeastern Brazil: C. frevo sp. nov. In addition, we provide an identification key, new distribution records of the genus in the states of Alagoas, Bahia, Pará, and Pernambuco, in Brazil, and the first record for the genus in caves.

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Research Article Fri, 17 Jun 2022 12:49:59 +0300
A new genus of Australian orb-weaving spider with extreme sexual size dimorphism (Araneae, Araneidae) https://zse.pensoft.net/article/82649/ Zoosystematics and Evolution 98(1): 137-149

DOI: 10.3897/zse.98.82649

Authors: Volker W. Framenau, Pedro de S. Castanheira

Abstract: The new Australian orb-weaving spider genus Mangrovia in the family Araneidae Clerck, 1757 is described. It is characterised by extreme sexual size-dimorphism (eSSD) with females (total length 8–10 mm) ca. 3 to 5 times larger than males (2.5–3 mm). Whilst Mangrovia shares with the informal Australian ‘backobourkiine’ clade a single seta on the male pedipalp patella, the genus is probably more closely related to the ‘zealaraneines’ or associated genera. In addition to eSSD and the single patellar spine, the genus is characterised by a distinct subterminal embolus branch in males. The new genus includes two species: the type species Mangrovia albida (L. Koch, 1871) comb. nov. (= Epeira fastidiosa Keyserling, 1887, new syn.) from Queensland and Mangrovia occidentalis sp. nov. from Western Australia. Both species are apparently coastal and occur in mangroves, but also in riparian woodland. Spiders were found resting in rolled-up leaves adjacent to their orb-web.

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Research Article Thu, 5 May 2022 13:36:28 +0300
New records and a new cave-dwelling species of Agoristenidae (Arachnida, Opiliones) from Colombia https://zse.pensoft.net/article/78202/ Zoosystematics and Evolution 98(1): 55-63

DOI: 10.3897/zse.98.78202

Authors: Andrés F. García, Alex González Vargas, Miguel Gutiérrez Estrada

Abstract: Three species of Avima are recorded for the first time from Colombia (La Guajira department): A. venezuelica Soares & Avram, 1981, A. troglobia (Pinto-da-Rocha, 1996), and A. wayuunaiki Sp. nov. Complementary and new descriptions of the species are offered and scanning electron microscopy photographs of the male genitalia of A. troglobia are given.

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Research Article Wed, 16 Feb 2022 14:08:36 +0200
Grismadox gen. nov., a new Neotropical genus of ant-resembling spiders (Araneae, Corinnidae, Castianeirinae), including the description of two new species from Bolivia and Paraguay https://zse.pensoft.net/article/76677/ Zoosystematics and Evolution 98(1): 1-11

DOI: 10.3897/zse.98.76677

Authors: Brogan L. Pett, Gonzalo D. Rubio, Robert Perger

Abstract: A new genus and two new species of ant-resembling castianeirine spiders are described from the Neotropics. Grismadox gen. nov. comprises four species: Grismadox baueri sp. nov., and Grismadox mazaxoides (Perger & Duperré, 2021) comb. nov. from Bolivia, and Grismadox karugua sp. nov. (type species) and Grismadox mboitui (Pett, 2021) comb. nov. from Paraguay. All species are diagnosed and the new species are described and illustrated. Available ecological data suggests that all four species are primarily epigeal and inhabit Grassland and savannah type habitats.

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Research Article Fri, 7 Jan 2022 13:25:55 +0200
Review of the Australian and New Zealand orb-weaving spider genus Novakiella (Araneae, Araneidae) https://zse.pensoft.net/article/67788/ Zoosystematics and Evolution 97(2): 393-405

DOI: 10.3897/zse.97.67788

Authors: Volker W. Framenau, Cor J. Vink, Nikolaj Scharff, Renner L. C. Baptista, Pedro de S. Castanheira

Abstract: The orb-weaving spider genus Novakiella Court & Forster, 1993 (family Araneidae Clerck, 1757) is reviewed to include two species, N. trituberculosa (Roewer, 1942) (type species, Australia and New Zealand) and N. boletus sp. nov. (Australia). Novakiella belongs to the informal, largely Australian ‘backobourkiine’ clade and shares with the other genera of the clade a single macroseta on the male pedipalp patella and a median apophysis of the male pedipalp that forms an arch over the radix. The proposed genus synapomorphies are the presence of a large basal conductor lobe expanding apically over the radix and the shape of the median apophysis, which extends into a basally directed, pointy projection. Males have an apico-prolateral spur on the tibia of the second leg that carries a distinct spine. Females have an epigyne with triangular base plate bearing transverse ridges and an elongate triangular scape, which is almost always broken off. The humeral humps of the abdomen are distinct. Novakiella trituberculosa build characteristic dome-shaped webs; however, the foraging behaviour and web-shape of N. boletus sp. nov., currently only known from museum specimens, are not known.

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Research Article Mon, 26 Jul 2021 18:32:53 +0300
Three new species of the spider genus Nopsma (Araneae, Caponiidae, Nopinae) from Colombia https://zse.pensoft.net/article/69089/ Zoosystematics and Evolution 97(2): 383-392

DOI: 10.3897/zse.97.69089

Authors: Alexander Sánchez-Ruiz, Leonel Martínez, Alexandre B. Bonaldo

Abstract: Three new Colombian species of the spider genus Nopsma Sánchez-Ruiz, Brescovit & Bonaldo, 2020 are described and illustrated: Nopsma leticia sp. nov. (male) from Amazonas department, Nopsma macagual sp. nov. (male) from Caquetá department and Nopsma paya sp. nov. (male and female) from Putumayo department. The collection data of the holotype of Nopsma florencia Sánchez-Ruiz, Brescovit & Bonaldo are corrected. Additionally, an updated identification key for all species of the genus and a distribution map for the Colombian species are included.

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Research Article Tue, 13 Jul 2021 08:15:44 +0300
Myrmecotypus mazaxoides sp. nov. – a new ground-dwelling, carpenter ant-resembling sac spider species from the Bolivian orocline, with indirect evidence for species-specific mimicry (Araneae, Corinnidae, Castianeirinae) https://zse.pensoft.net/article/64766/ Zoosystematics and Evolution 97(1): 273-280

DOI: 10.3897/zse.97.64766

Authors: Robert Perger, Nadine Dupérré

Abstract: A new ant-resembling spider species of the subfamily Castianeirinae, Myrmecotypus mazaxoides sp. nov., from the Sub-Andean area of the Bolivian orocline is described. Adults of M. mazaxoides sp. nov. resemble the carpenter ant Camponotus cf. melanoticus Emery, 1894 and were observed on the ground of savanna-like habitats close to the entrances of formicaries of this ant. This study is the first to report a ground-dwelling species of Myrmecotypus O. Pickard-Cambridge, 1894; all the other species are arboreal.

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Research Article Thu, 13 May 2021 14:53:37 +0300
A new species of Cybaeus L. Koch, 1868 (Araneae, Cybaeidae) with simple genitalia from central Japan is the sister species of C. melanoparvus Kobayashi, 2006 with elongated genitalia https://zse.pensoft.net/article/64473/ Zoosystematics and Evolution 97(1): 223-233

DOI: 10.3897/zse.97.64473

Authors: Yusuke Sugawara, Yoh Ihara, Takafumi Nakano

Abstract: Spiders of the genus Cybaeus L. Koch, 1868 exhibit two major centers of diversity: Western North America and Japan. Several Japanese Cybaeus possess an elongated embolus in the male palp and elongated tubular spermathecae in the female genitalia. Here we describe Cybaeus koikei sp. nov. from central Honshu, Japan, which has an unelongated embolus and bulbous spermathecae. Phylogenetic analyses using nuclear and mitochondrial gene markers clearly support the monophyly of C. koikei sp. nov. and Cybaeus melanoparvus Kobayashi, 2006, a species with elongated genitalia. Both species share a similar habitus and a cluster of robust setae on the lateral surface of the male palpal patella. The latter is considered a synapomorphy for C. koikei sp. nov. and C. melanoparvus. A supplementary description of the spermathecae of C. melanoparvus is also provided.

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Research Article Wed, 7 Apr 2021 17:01:22 +0300
Feaella (Tetrafeaella) obscura sp. nov. – a new pseudoscorpion species from the Maldives (Arachnida, Pseudoscorpiones), and an updated identification key to the subgenus Feaella (Tetrafeaella) https://zse.pensoft.net/article/56885/ Zoosystematics and Evolution 96(2): 769-779

DOI: 10.3897/zse.96.56885

Authors: János Novák, Michelle Lorenz, Danilo Harms

Abstract: The Feaellidae Ellingsen, 1906 is a small but ancient family of pseudoscorpions with 20 extant species across the Southern Hemisphere, and fossils from the Lower Cretaceous of Myanmar and the Eocoene of Europe. Here, we describe and illustrate Feaella (Tetrafeaella) obscura sp. nov. as a new species from the Maldives archipelago in the Indian Ocean. This is the first record of Feaella from a young oceanic island and may indicate a potential for long-distance dispersal in this lineage. We also elevate Feaella (T.) capensis nana Beier, 1966 to full species rank as F. (T.) nana Beier, 1966 and provide an identification key to the members of the subgenus Feaella (Tetrafeaella), thereby facilitating the identification of species.

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Research Article Thu, 19 Nov 2020 10:16:35 +0200
Sympolymnia, a new genus of Neotropical ant-like spider, with description of two new species and indirect evidence for transformational mimicry (Araneae, Salticidae, Simonellini) https://zse.pensoft.net/article/55210/ Zoosystematics and Evolution 96(2): 781-795

DOI: 10.3897/zse.96.55210

Authors: Robert Perger, Gonzalo D. Rubio

Abstract: Sympolymnia, a new genus of myrmecomorph jumping spider belonging to the tribe Simonellini Peckham, Peckham & Wheeler, 1889, is described. It comprises five species: the type species, Sympolymnia lucasi (Taczanowski, 1871), comb. nov., Sympolymnia lauretta (Peckham & Peckham, 1892), comb. nov., Sympolymnia edwardsi (Cutler, 1985), comb. nov. and Sympolymnia shinahota sp. nov. and S. cutleri sp. nov. Sympolymnia lauretta (Peckham & Peckham, 1892) is recorded from Bolivia for the first time. Ontogenetic shifts of ant-resemblance are observed: Juveniles of S. cutleri sp. nov. and S. lauretta mimic black ants of the genus Crematogaster Lund, 1831, but those of S. shinahota sp. nov. most closely resemble Pseudomyrmex ethicus (Forel, 1911). Adults of S. cutleri sp. nov., S. lauretta and S. shinahota sp. nov. resemble the ant Camponotus sanctaefidei Dalla Torre, 1892 and orange adults of S. shinahota sp. nov. are putative mimics of Camponotus latangulus Roger, 1863.

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Research Article Thu, 19 Nov 2020 09:03:50 +0200
Mitochondrial discordance in closely related Theridion spiders (Araneae, Theridiidae), with description of a new species of the T. melanurum group https://zse.pensoft.net/article/49946/ Zoosystematics and Evolution 96(1): 159-173

DOI: 10.3897/zse.96.49946

Authors: Marc Domènech, Luís C. Crespo, Alba Enguídanos, Miquel A. Arnedo

Abstract: The incorporation of molecular data into current taxonomic practise has unravelled instances of incongruence among different data sets. Here we report a case of mitochondrial discordance in cobweb spiders of the genus Theridion Walckenaer, 1805 from the Iberian Peninsula. Morphological examination of samples from a country-wide bioinventory initiative revealed the existence of a putative new species and two nominal species belonging to the Theridion melanurum species group. The morphological delineation was supported by the molecular analysis of a nuclear marker but was at odds with the groups circumscribed by a mitochondrial marker. The causes of this discordance remained uncertain, once sample and sequencing errors and the existence of pseudogenes were discarded. The full sorting observed in the alleles of the more slowly evolving nuclear marker ruled out incomplete lineage sorting, while the geographic patterns recovered were difficult to reconciliate with ongoing hybridization. We propose that the apparent incongruence observed is most likely the result of old introgression events in a group with high dispersal abilities. We further speculate that endosymbiont-driven cytoplasmatic incompatibility could be involved in the fixation of mitochondrial haplotypes across species barriers. Additionally, we describe the new species T. promiscuum sp. nov., based on the presence of diagnostic morphological traits, backed up by the nuclear data delimitation. Our study contributes yet another example of the perils of relying on single methods or data sources to summarise the variation generated by multiple processes acting through thousands of years of evolution and supports the key role of biological inventories in improving our knowledge of invertebrate biodiversity.

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Research Article Mon, 4 May 2020 10:06:51 +0300
Descriptions of three new species of jumping-spiders, genus Arnoliseus (Araneae, Salticidae), from Rio de Janeiro state, Brazil, with comments on their genital morphology and a key to species https://zse.pensoft.net/article/46509/ Zoosystematics and Evolution 96(1): 73-90

DOI: 10.3897/zse.96.46509

Authors: Renner Luiz Cerqueira Baptista, Pedro de Souza Castanheira, Gabriel Assunção Oliveira, André Wanderley do Prado

Abstract: New data on the jumping-spider genus Arnoliseus are presented. Three new species from the Atlantic Forest in Rio de Janeiro state are described, based on both sexes: Arnoliseus carioca sp. nov. from the city of Rio de Janeiro, and Arnoliseus hastatus sp. nov. and Arnoliseus falcatus sp. nov. from the municipality of Cachoeiras de Macacu. The genus’ genital morphology is discussed in detail and new English terminology for their structures is created. An identification key for all Arnoliseus species is given.

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Research Article Mon, 24 Feb 2020 08:43:10 +0200
Contributions to the taxonomy of the long-jawed orb-weaving spider genus Tetragnatha (Araneae, Tetragnathidae) in the Neotropical region, with comments on the morphology of the chelicerae https://zse.pensoft.net/article/36762/ Zoosystematics and Evolution 95(2): 465-505

DOI: 10.3897/zse.95.36762

Authors: Pedro de Souza Castanheira, Renner Luiz Cerqueira Baptista, Daniela Dos Passos Pizzetti, Renato Augusto Teixeira

Abstract: We newly diagnose, illustrate, and clarify the distribution ranges of six of the most common and broadly distributed species of Tetragnatha Latreille, 1804 found in the Neotropical region. Twenty new junior synonyms from around the world are included, nine for T. bogotensis Keyserling, 1865, four for T. mandibulata Walckenaer, 1841, three for T. keyserlingi Simon, 1890, three for T. nitens (Audouin, 1826), and one for T. elongata Walckenaer, 1841. Tetragnatha vermiformis Emerton, 1884 is newly recorded from South America. The Argentine T. major Holmberg, 1876 and T. riparia Holmberg, 1876 are considered nomina dubia. Finally, we discuss the terminology of the structures of the chelicerae to establish a coherent nomenclature for teeth and fang cusps.

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Research Article Tue, 22 Oct 2019 09:12:43 +0300
A taxonomic review of the crab spider genus Sidymella (Araneae, Thomisidae) in the Neotropics https://zse.pensoft.net/article/34958/ Zoosystematics and Evolution 95(2): 319-344

DOI: 10.3897/zse.95.34958

Authors: Miguel Machado, Catherine Guzati, Rafaela Viecelli, Diana Molina-Gómez, Renato Augusto Teixeira

Abstract: Four Neotropical species of Sidymella Strand, 1942, S. furcillata Keyserling, 1880, S. longispina (Mello-Leitão, 1943), S. lucida (Keyserling, 1880), and S. kolpogaster (Lise, 1973) are redescribed from both sexes. The holotype of S. nigripes (Mello-Leitão, 1947) is lost and this taxon is considered a species inquierenda. Sidymella obscura (Mello-Leitão, 1929), S. parallela (Mello-Leitão, 1929), and S. spinifera (Mello-Leitão, 1929) are all nomina dubia. Two new species are described: Sidymella excavata sp. nov. (males and females) and S. marmorata sp. nov. (female).

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Research Article Wed, 29 May 2019 15:47:02 +0300
Common littoral pycnogonids of the Mediterranean Sea https://zse.pensoft.net/article/4206/ Zoosystematics and Evolution 90(2): 163-224

DOI: 10.3897/zse.90.7520

Authors: Tobias Lehmann, Martin Heß, Roland R. Melzer

Abstract: In the present study 21 littoral pycnogonid species from 5 families are analysed: Ammotheidae (9 species), Callipallenidae (5 species), Endeidae (2 species), Phoxichilidiidae (3 species), and Pycnogonidae (2 species). The material was mainly taken from Mediterranean pycnogonid collections housed in the Bavarian State Collection of Zoology. Additional material was collected during field trips. Altogether the material was obtained from six different locations: Banyuls-sur-Mer (France), Tavolara Island (Italy), Elba Island (Italy), Giglio Island (Italy), Sicily Island (Italy), and Istria Peninsula (Croatia). The animals were studied in detail with a scanning electron microscope (SEM). Additionally series of light microscopic pictures were made to generate extended depth of field pictures of whole animals. The observed features are compared with previous literature.

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Research Article Fri, 31 Oct 2014 00:00:00 +0200