A new species of mites of the genus Tarsopolipus (Acari: Prostigmata: Podapolipidae) is described from southern Iran. Tarsopolipus husbandi Mortazavi and Hajiqanbar n. sp. is a sub-elytral ectoparasite of the scarabaeid beetle, Scarabaeus (Scarabaeus) acuticollis. The new species is closely related to Tarsopolipus corrugatus Berlese 1911, but is distinguished from it by the following characters. Adult female: presence of vestigial setae v₂ and shorter setae sc₂. Adult male: presence of setae v′ on tibia IV and shorter setae sc₂ and c₂. Larval female: shorter cheliceral stylets and longer distance between setae v₁ and ch. Species of Tarsopolipus are currently distributed in Afro-tropical, Palaearctic, and Oriental regions and parasitize species in 3 genera of scarabaeid beetles, i.e., Scarabaeus, Kheper, and Drepanopodes, all belonging to the tribe Scarabaeini.