Subgenus: Chilotrichia Foerster, 1862

Chilotrichia Foerster, 1862: 258 . Type species: Opius blandus Haliday.

* Biosteres (Chilotrichia) arenarius (Stelfox, 1959)

Opius (Biosteres) arenarius Stelfox, 1959: 118 –119.

Biosteres (Chilotrichia) arenarius Fischer, 1972: 1 –620.

Distribution in Turkey. Düzce, Sivas (Beyarslan & Fischer 2011).

Distribution. Palaearctic. France, Germany, Ireland, Moldova, Russia, Turkey.