On the northernmost Orchestina species in China, with a first description of the female of O. zhiwui (Araneae, Oonopidae)

Orchestina zhiwui Liu, Xu & Henrard, 2019, a species previously known only from males collected in Jiangxi Province, was found in Liaoning, ca 2200 km northeast of the type locality, including specimens of both sexes. The previously unknown female of this species is described, and the male is redescribed. A key to species of the genus Orchestina from China is provided