* Opius (Tolbia) rudiformis Fischer, 1958
Opius rudiformis Fischer, 1958b: 201 .
Opius (Gastrosema) rudiformis Papp, 1981a: 269 . Opius rotundiformis Hellén, 1959: 22 (misspelling). Opius (Tolbia) rudiformis Fischer, 1972: 347 .
Distribution in Turkey. Karabuk (Fischer & Beyarslan, 2005b).
Distribution. Palaearctic. Austria, Canary Islands, former Czechoslovakia, Denmark, England, Finland, France, Italy, Russia, Turkey, eastern Canada.