Integrative taxonomy of the genus Nesticus in central Japan, with the description of a new species and redescriptions of N. echigonus and N. gondai (Araneae, Nesticidae)

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  Integrative taxonomy of the genus Nesticus in central Japan, with the description of a new species and redescriptions of N. echigonus and N. gondai (Araneae, Nesticidae) Abstract Species of the genus Nesticus ( Araneae , Nesticidae ) in central Japan are revised based on morphological and molecular analyses of specimens collected from Niigata and Gunma Prefectures. Among them, a putative undescribed species was discovered having clearly distinguishable morphological characters from other known species in the same area. A phylogenetic analysis based on the mitochondrial COI gene was carried out using a maximum-likelihood method to confirm its distinctiveness. The new species, Nesticus yamabushi sp. nov ., is described based on specimens of both sexes. Furthermore, we provide detailed redescriptions of two other closely related species, N. echigonus and N. gondai , to address the lack of information in their original descriptions and facilitate future identifications. This s...

On the taxonomic validity of Indian ground spiders: VI. Genera Ladissa Simon, 1907, Melicymnis Simon, 1885, and Poecilochroa Westring, 1874 (Araneae: Gnaphosidae)

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On the taxonomic validity of Indian ground spiders: VI. Genera Ladissa Simon, 1907, Melicymnis Simon, 1885, and Poecilochroa Westring, 1874 (Araneae: Gnaphosidae)

Abstract

Indian species of the genera Ladissa Simon, 1907, Melicymnis Simon, 1885, and Poecilochroa Westring, 1874 are reviewed. The species Ladissa latecingulata Simon, 1907, and Melicymnis bicolor Simon, 1885 are considered as species inquirenda due to the immature stage of the types. The type locality of L. latecingulata is confirmed as in Pakistan, and its record in India is found incorrect. The following new combinations are recognised: Hitobia behni (Thorell, 1891) comb. nov., H. devendrai (Gajbe & Rane, 1985) comb. nov. and H. tikaderi (Patel, 1989) comb. nov. (all ex. Poecilochroa). Images of all the examined type specimens, and supplementary descriptions for P. barmani, H. behni comb. nov. and H. devendrai comb. nov. are presented.

Sankaran, P.M. & Caleb, J.T. (2025) On the taxonomic validity of Indian ground spiders: VI. Genera Ladissa Simon, 1907, Melicymnis Simon, 1885, and Poecilochroa Westring, 1874 (Araneae: Gnaphosidae). Zootaxa, 5673 (1), 132–142. https://doi.org/10.11646/zootaxa.5673.1.9