Hypoaspis alborzensis Razavi Susan & Joharchi sp. nov. and H. rhinocerotis Oudemans, 1925 were collected on adult female Oryctes sp. (Coleoptera: Scarabaeidae) in Karaj, Alborz province, Iran. The new species is described and illustrated from adult females. Hypoaspis rhinocerotis is reported for the first time from Iran.