Checklist of the Clubiona japonica -group spiders, with the description of a new species from China (Araneae, Clubionidae).

In the present paper, a worldwide checklist of Clubiona japonica -group spiders is provided based on published literature and authors' collections. A new japonica -group species, Clubiona grucollaris sp. n. (♀♂) from Guizhou Province and Hainan Island of China is diagnosed, described, and illustrated. A distribution map of this species is given.