| abstract | The genus Sonotetranychus Tuttle, Baker & Abbatiello is recorded from mainland China for the first time. Sonotetranychus neosalicis sp. nov. is described from females collected on the leaves of Salix chaenomeloides Kimura (Salicaceae) in Nanchang, Jiangxi, China. This new species can be distinguished from other members of Sonotetranychus by femora I–IV with 8-6-3-2 tactile setae, genu III with three tactile setae, tibiae III–IV with 5-5 tactile setae and transverse striae between dorsal setae e. The key to Sonotetranychus species of the world is updated. |