3. Dermacentor asper Arthur, 1960a .

Palearctic: 1) China (north) (Keirans 1985b)

Dermacentor asper is treated as a synonym of Dermacentor sinicus by Teng & Jiang (1991), Kolonin (2009) and others working with Chinese ticks, but it is regarded as a valid species in Guglielmone et al. (2014, 2015, 2020) and here.