New species of Tygarrup centipedes from Xizang, China (Geophilomorpha, Mecistocephalidae)

Prior to this study, the genus Tygarrup Chamberlin, 1914, is known to contain only two species in Xizang, China. New records derived from multiple collections allow for the distribution ranges of six species to be refined: Tygarrup tridentatus Jiang & Huang, sp. nov. , Tygarrup cerrus Jiang & Huang, sp. nov. , Tygarrup multiporus Jiang & Huang, sp. nov. , and Tygarrup fimbriatus Jiang & Huang, sp. nov. are described as new. Tygarrup muminabadicus Titova, 1965, was first reported in the fauna of Xizang. Tygarrup poriger (Verhoeff, 1942) is rediscovered and redescribed, and Tygarrup nepalensis Shinohara, 1965 is synonymized with T. poriger . Remarks are provided for all encountered species, and a key to all Tygarrup species in China is presented.