Opilioacarus is a genus of mites, containing the following species: \n* Opilioacarus bajacalifornicus Vázquez & Klompen, 2002 \n* Opilioacarus italicus (With, 1904) \n* Opilioacarus nicaraguensis Vázquez & Klompen, 2002 \n* Opilioacarus nohbecanus Vázquez & Klompen, 2002 \n* Opilioacarus ojastii (Lehtinen, 1980) \n* Opilioacarus orghidani Juvara-Bals & Baltac, 1977 \n* Opilioacarus platensis Silvestri, 1905 \n* Opilioacarus segmentatus With, 1902 \n* Opilioacarus siankaanensis Vázquez & Klompen, 2002 \n* Opilioacarus texanus (Chamberlin & Mulaik, 1942) \n* Opilioacarus vanderhammeni Juvara-Bals & Baltac, 1977