Calinaga cercyon

Calinaga cercyon is a butterfly found in the Palearctic that belongs to the browns
family. It is endemic to West China and East Tibet.

Description from Seitz

C. cercyon Nicev. has the markings quite similar to -, but the ground is yellowish; moreover, the position of the distal spots of the forewing is somewhat different, so that we apparently have to do with a distinct species.— West China: Ta-tsien-lu.