Mating Primnoa primnoa F.-W., a brachipteric locust species inhabiting open forests and ranging in the southern Central Siberia, Mongolia, the southern Russian Far East and N. China.

An open Dahurian larch (Larix gmelinii (Rupr.) Rupr.)/birch (Betula pendula Roth. and Betula davurica Pall.) forest on a gentle eastern slope of a mountain on the Argun' River left bank 10 km S of the village Uryupino, Gazimurskozavodskoi District, E Chita Province, E Transbaikalia, Siberia, Russia. 30th July 1997. O. Kosterin.