Four new species of cave-adapted pseudoscorpions (Pseudoscorpiones, Pseudotyrannochthoniidae) from Guizhou, China

Four new troglomorphic pseudotyrannochthoniid pseudoscorpion species collected from karst caves in Guizhou Province are described with detailed diagnoses and illustrations: Allochthonius bainiensis sp. nov. from Liangfeng Cave (Xishui County), Allochthonius pandus sp. nov. from Daozuo Cave (Xishui County), Allochthonius xinqiaoensis sp. nov. from Sanjie Cave (Fenggang County), and Spelaeochthonius wulibeiensis sp. nov. from Wulibei Cave (Weining County). Spelaeochthonius wulibeiensis sp. nov. represents the first record of the genus in China. The diagnostic features of these four new cave-adapted (troglomorphic) species are presented and discussed, as well as compared with closely related species. The data on their distribution, habitat and ecology of the species are also given