Colias heos (Herbst, 1792) (= Colias aurora (Esper, 1783), homonym)
Range: locally from the Ob' River to the Pacific, including Mongolia, NE China, mostly on elevations and mountains.
ssp.: heos (Herbst, 1792), monotypical.
A male, wings closed.
A steppefied meadow on a high right bank of the Onon River 5 km upstream of the village Nizhnii Tsasuchei, Onon District, S Chita Province (Dahuria), S Transbaikalia, Siberia, Russia. 30th June 1996. O. Kosterin.