Beneath the surface: A new northern species of Trogloraptor (Araneae: Trogloraptoridae), genetic diversity and natural history

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  Beneath the surface: A new northern species of Trogloraptor (Araneae: Trogloraptoridae), genetic diversity and natural history Abstract We present a morphological description of a recently discovered species of spider in the family Trogloraptoridae from the Columbia River Gorge in northwestern Oregon. The family was previously monotypic (Trogloraptor marchingtoni) and only known from populations near the southwestern Oregon—northern California border. Trogloraptor tulishpun sp. nov. retains the key family synapomorphy, distinctive subsegmented raptorial tarsi, and an oblique membranous division of the basal segment of the anterior lateral spinnerets. Trogloraptor tulishpun is distinguished from T. marchingtoni by its color pattern, clypeal height, vulvar and palp structure. We have found T. tulishpun in four localities in the Columbia River Gorge, which show little mitochondrial sequence divergence from one another, but are highly genetically distinct from T. marchingtoni. Troglo...

Six new species of Pandercetes L. Koch, 1875 (Araneae: Sparassidae: Heteropodinae) from Southeast Asia

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Six new species of Pandercetes L. Koch, 1875 (Araneae: Sparassidae: Heteropodinae) from Southeast Asia

Abstract

Six new species, Pandercetes batak sp. nov. (♂♀), P. barisanensis sp. nov. (♀; both from Sumatra, Indonesia), P. cheemai sp. nov. (♂♀; Laos), P. mindanaoensis sp. nov. (♂; Philippines, Mindanao), P. jaegeri sp. nov. (♀) and P. bataanensis sp. nov. (♀; both from Philippines, Luzon) are described. The genus is recorded from Laos, Philippines and Sumatra for the first time. The discovery of P. cheemai sp. nov. represents the northernmost record for the genus range. Genus Pandercetes is re-diagnosed. For two species, P. longipes Thorell, 1881 and P. peronianus (Walckenaer, 1837), the distribution data listed in the World Spider Catalog was found to be inaccurate and has now been revised. Detailed descriptions, digital photographs and a distributional map of all new species are provided.

Omelko, M.M. & Fomichev, A.A. (2026) Six new species of Pandercetes L. Koch, 1875 (Araneae: Sparassidae: Heteropodinae) from Southeast Asia. Zootaxa, 5787 (2), 291–312. https://doi.org/10.11646/zootaxa.5787.2.4