Abstract
The genus of Lagynochthonius from China was reviewed. Nine new hypogean species were described: Lagynochthonius apexus sp. nov. (♂♀), L. infirmus sp. nov. (♂♀), L. longquanensis sp. nov. (♀) and L. zhakouensis sp. nov. (♂♀) from Sichuan, L. baiguensis sp. nov. (♂♀), L. guangyangensis sp. nov. (♂♀), L. jingshengensis sp. nov. (♂♀) and L. zhaoae sp. nov. (♀) from Guangxi, L. galeatus sp. nov. (♀) from Guizhou. The male L. guanniuensis Hou, Feng & Zhang, 2023, L. maanensis Hou, Feng & Zhang, 2023 and L. xiaoensis Hou, Feng & Zhang, 2023 from Guizhou are reported for the first time. The species key and a geographical distribution map of Lagynochthonius species from China are provided.
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