Opius (Gastrosema) caucasi Tobias, 1986

Opius (Tolbia) caucasi Tobias, 1986: 7 –231.

Opius (Phaedrotoma) caucasi Fischer, 1991 a

Opius (Gastrosema) caucasi Fischer, 1991: 139 –203.

Distribution in Turkey. Adana, Afyon, Aydin, Bartin, Bolu, Düzce, Edirne, Erzurum, Hatay, Kahramanmaraş, Karabük, Kastamonu, Kirklareli, Sinop, Sanliurfa, Zonguldak (Fischer & Beyarslan, 2005a); Edirne, Elazig, Erzincan, Gümüşhane, Kayseri, Malatya, Nevsehir, Niğde, Ordu, Tokat, Trabzon, Tunceli, Zonguldak (Beyarslan & Fischer, 2011); Aksaray, Bartin, Cankiri, Sivas (Fischer & Beyarslan, 2012).

Distribution. Western Palaearctic. Japan, Russia, Turkey.