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A taxonomic study on Epedanidae from Thailand including functional aspects of male genital morphology (Opiliones, Laniatores).

ABSTRACT: The South-East Asian opilionid family Epedanidae Sørensen, 1886 has one of its strongholds in Thailand from where a multitude of genera and species have been described but the epedanid fauna of the country is still poorly known. This paper records four species from this country, three of which are new: Euepedanus dashdamirovi sp. nov. (male and female), Plistobunus jaegeri sp. nov. (male and female), and Toccolus kuryi sp. nov. (male and female). Toccolus globitarsis Suzuki, 1969 was previously known only from the type locality in Thailand and is redescribed here. Functional aspects of epedanid penial morphology are highlighted.

SUBMITTER: Zhang C

PROVIDER: S-EPMC7052023 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature

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A taxonomic study on Epedanidae from Thailand including functional aspects of male genital morphology (Opiliones, Laniatores).

Zhang Chao C Martens Jochen J

ZooKeys 20200224

The South-East Asian opilionid family Epedanidae Sørensen, 1886 has one of its strongholds in Thailand from where a multitude of genera and species have been described but the epedanid fauna of the country is still poorly known. This paper records four species from this country, three of which are new: Euepedanus dashdamirovi sp. nov. (male and female), Plistobunus jaegeri sp. nov. (male and female), and Toccolus kuryi sp. nov. (male and female). Tocc ...[more]

PMID: 32148422

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Project description:As part of an ongoing revision of the family Gonyleptidae, we have identified many species that are synonyms of previously described species or misplaced in this family. This article summarizes these findings, adding previously unavailable information or correcting imprecise observations to justify the presented taxonomic changes. THE FOLLOWING NEW FAMILIAL OR SUBFAMILIAL ASSIGNMENTS ARE PROPOSED: Nemastygnus Roewer, 1929 and Taulisa Roewer, 1956 are transferred to Agoristenidae, Agoristeninae; Napostygnus Roewer, 1929 to Cranaidae; Ceropachylinus peruvianus Roewer, 1956 and Pirunipygus Roewer, 1936 are transferred to Gonyleptidae, Ampycinae; Gyndesops Roewer, 1943, Haversia Roewer, 1913 and Oxapampeus Roewer, 1963 are transferred to Gonyleptidae, Pachylinae. The following generic synonymies are proposed for the family Gonyleptidae: Acanthogonyleptes Mello-Leitão, 1922 = Centroleptes Roewer, 1943; Acrographinotus Roewer, 1929 = Unduavius Roewer, 1929; Gonyleptes Kirby, 1819 = Collonychium Bertkau, 1880; Mischonyx Bertkau, 1880 = Eugonyleptes Roewer, 1913 and Gonazula Roewer, 1930; Parampheres Roewer, 1913 = Metapachyloides Roewer, 1917; Pseudopucrolia Roewer, 1912 = Meteusarcus Roewer, 1913; Haversia Roewer, 1913 = Hoggellula Roewer, 1930. The following specific synonymies are proposed for the family Gonyleptidae: Acanthogonyleptes singularis (Mello-Leitão, 1935) = Centroleptes flavus Roewer, 1943, syn. n.; Geraeocormobius sylvarum Holmberg, 1887 = Discocyrtus serrifemur Roewer, 1943, syn. n.; Gonyleptellus bimaculatus (Sørensen, 1884) = Gonyleptes cancellatus Roewer,1917, syn. n.; Gonyleptes atrus Mello-Leitão, 1923 = Weyhia brieni Giltay, 1928, syn. n.; Gonyleptes fragilis Mello-Leitão, 1923 = Gonyleptes banana Kury, 2003, syn. n.; Gonyleptes horridus Kirby, 1819 = Collonychium bicuspidatum Bertkau, 1880, syn. n., Gonyleptes borgmeyeri Mello-Leitão, 1932, syn. n., Gonyleptes curvicornis Mello-Leitão, 1932, syn. n., Metagonyleptes hamatus Roewer, 1913, syn. n. and Paragonyleptes simoni Roewer, 1930, syn. n.; Gonyleptes pustulatus Sørensen, 1884 = Gonyleptes guttatus Roewer, 1917, syn. n.; Haversia defensa (Butler, 1876) = Sadocus vallentini Hogg, 1913, syn. n.; Liogonyleptoides minensis (Piza, 1946) = Currala bahiensis Soares, 1972, syn. n.; Megapachylus grandis Roewer, 1913 = Metapachyloides almeidai Soares & Soares, 1946, syn. n.; Mischonyx cuspidatus (Roewer, 1913) = Gonazula gibbosa Roewer, 1930 syn. n.; Mischonyx scaber (Kirby, 1819) = Xundarava holacantha Mello-Leitão, 1927, syn. n.; Parampheres tibialis Roewer, 1917 = Metapachyloides rugosus Roewer, 1917, syn. n.; Parapachyloides uncinatus (Sørensen, 1879) = Goyazella armata Mello-Leitão, 1931, syn. n.; Pseudopucrolia mutica (Perty, 1833) = Meteusarcus armatus Roewer, 1913, syn. n.THE FOLLOWING NEW COMBINATIONS ARE PROPOSED: Acrographinotus ornatus (Roewer, 1929), comb. n. (ex Unduavius); Gonyleptellus bimaculatus (Sørensen, 1884),comb. n. (ex Gonyleptes);Gonyleptes perlatus (Mello-Leitão, 1935), comb. n. (exMoojenia);Mischonyx scaber (Kirby, 1819), comb. n. (ex Gonyleptes); and Neopachyloides peruvianus (Roewer, 1956), comb. n. (ex Ceropachylus). The following species of Gonyleptidae, Gonyleptinae are revalidated: Gonyleptes atrus Mello-Leitão, 1923 and Gonyleptes curvicornis (Roewer, 1913).

Project description:Comprising more than 6500 species, Opiliones is the third most diverse order of Arachnida, after the megadiverse Acari and Araneae. The database referred here is part 1 of 12 of a project containing an intended worldwide checklist of species and subspecies of Opiliones as Darwin Core archives, and it includes the superfamilies Travunioidea and Triaenonychoidea. These two superfamilies are often treated together under the denomination of Insidiatores. In this Part 1, a total of 571 species and subspecies are listed. Briggsidae and Cladonychiidae are both downgraded to subfamilies of Travuniidae. Peltonychia Roewer, 1935 is an available name and senior synonym of Hadziana Roewer, 1935 and is herein revalidated. Seven genera of Triaenonychidae described by Lawrence between 1931 and 1933 originally failed to comply ICZN rules for availability (Art. 13.3). All of them only became available when Staręga (1992) designated a type species for each. Therefore, the correct authorships of Austromontia Lawrence, 1931, Biacumontia Lawrence, 1931, Graemontia Lawrence, 1931, Larifugella Lawrence, 1933, Mensamontia Lawrence, 1931, Monomontia Lawrence, 1931 and Rostromontia Lawrence, 1931 are all Staręga, 1992. Fumontana Shear, 1977, originally referred only to subfamily Triaenonychinae (as opposed to Soerensenellinae then and not corresponding to present Triaenonychinae), not to any tribe (which in turn correspond to modern subfamilies) is herein included in the subfamily Triaenonychinae. Picunchenops Maury, 1988 originally not included in any tribe of Triaenonychidae, is herein included in the subfamily Triaenonychinae. Trojanella Karaman, 2005, originally ranked as Travunioidea incertae sedis, is herein included in the TravuniidaeTravuniinae. Nunciaovata Roewer, 1915 (synonymized with Triaenonyxcockayni Hogg, 1920 by Forster (1954), but with inverted precedence) is here combined as Nunciacoriaceaovata Roewer, 1915 as correct senior synonym instead of Nunciacoriaceacockayni (Hogg, 1920), which is current in the literature. Neonunciaenderbei (Hogg, 1909) is reaffirmed as the correct spelling for the species, while the deliberate change to Neonunciaenderbyi by Forster (1954) is an incorrect subsequent spelling.

Dataset Information

A taxonomic study on Epedanidae from Thailand including functional aspects of male genital morphology (Opiliones, Laniatores).

Publications

A taxonomic study on Epedanidae from Thailand including functional aspects of male genital morphology (Opiliones, Laniatores).

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