First record of the family Bemmeridae Simon, 1903 from China, with descriptions of three new species of Damarchus Thorell, 1891 (Arachnida, Araneae)

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  First record of the family Bemmeridae Simon, 1903 from China, with descriptions of three new species of Damarchus Thorell, 1891 ( Arachnida , Araneae ) Abstract The genus Damarchus Thorell, 1891 ( Bemmeridae ) represents a relatively understudied lineage of mygalomorph spiders, with previous studies documenting its distribution across several Asian countries, including India, Indonesia, Malaysia, Myanmar, Singapore, and Thailand. This study describes three new species from China, Damarchus dai sp. nov ., D. erebus sp. nov ., and D. rutilus sp. nov ., which represent the first formal records of the genus Damarchus and the family Bemmeridae for the spider fauna of China. Zhang Y, Yu K, Zhang F (2026) First record of the family Bemmeridae Simon, 1903 from China, with descriptions of three new species of Damarchus Thorell, 1891 (Arachnida, Araneae). ZooKeys 1287: 153-199. https://doi.org/10.3897/zookeys.1287.187795

On fork-tailed crab spiders: Two new species of Sidymella Strand, 1942 (Araneae: Thomisidae) from Ecuador

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On fork-tailed crab spiders: Two new species of Sidymella Strand, 1942 (Araneae: Thomisidae) from Ecuador

Abstract

Two new species from the family Thomisidae are described from Ecuador: Sidymella ayahuma sp. nov. from the Andean chocó region in Northwestern Ecuador (♀) and Sidymella malefica sp. nov. (♀) from the Andes region in central Ecuador.

Díaz-Guevara, D.R. & Machado, M. (2026) On fork-tailed crab spiders: Two new species of Sidymella Strand, 1942 (Araneae: Thomisidae) from Ecuador. Zootaxa, 5831 (2), 288–294. https://doi.org/10.11646/zootaxa.5831.2.11