Abstract
Spiders of the genus Althepus Thorell, 1898 are found throughout Southeast Asia, notable for their long walking legs. Ten new species are reported in this paper from China, Indonesia, Laos and Myanmar: A.chengmenensis Li & Li, sp. n. (♂♀), A.cheni Li & Li, sp. n. (♂♀), A.gouci Li & Li, sp. n. (♂♀), A.hongguangi Li & Li, sp. n. (♂♀), A.phousalao Li & Li, sp. n. (♂♀), A.qianhuang Li & Li, sp. n. (♂♀), A.qingyuani Li & Li, sp. n. (♀), A.sepakuensis Li & Li, sp. n. (♂♀), A.xuae Li & Li, sp. n. (♂♀) and A.yizhuang Li & Li, sp. n. (♂♀). These species were found in cave entrances and among tree-buttresses, indicating the spiders have a preference for dark and moist environments. All types are deposited in the Institute of Zoology, Chinese Academy of Sciences in Beijing, China (IZCAS).
Highlights
The spider family Ochyroceratidae Fage, 1912, contains 20 genera and 216 species (World Spider Catalog 2018)
In addition to morphological studies, we used molecular data from our extensive sampling to test the monophyly of the genus Althepus and delimitate the species (Li and Li 2018)
The molecular topologies inferred by two different approaches all supported Althepus as a monophyletic group
Summary
The spider family Ochyroceratidae Fage, 1912, contains 20 genera and 216 species (World Spider Catalog 2018). They are small, web-spinning spiders, widely distributed in tropical regions worldwide. The genus Althepus contains 33 species, most of them confined to Indo-Burma and the Sunda Shelf Islands (World Spider Catalog 2018). Deeleman-Reinhold (1985, 1995) described 13 species from Thailand, Borneo, and Indonesia. Li et al (2014) described five species from Laos, Thailand, Myanmar, and Malaysia. Descriptions of ten new Althepus species are provided, based on specimens collected from China, Indonesia, Laos, and Myanmar. The genital organs of the males and females are described and images are provided
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