Abstract
Eight new species and one known species of the oonopid spider genus Orchestina Simon, 1882 are described or recorded based on material collected from forest canopy of Xishuangbanna, Yunnan Province, southwestern China: O. alata sp. nov. (♂♀), O. aureola Tong & Li, 2011 (♂♀), O. caixiaae Tong & Li, sp. nov. (♂♀), O. longituba Tong & Li, sp. nov. (♂♀), O. qingyuani Tong & Li, sp. nov. (♂♀), O. subconcava Tong & Li, sp. nov. (♂♀), O. sublongituba Tong & Li, sp. nov. (♂♀), O. tentoria Tong & Li, sp. nov. (♂♀) and O. xuexing Tong & Li, sp. nov. (♂♀). An identification key to these nine species is provided.