Clossiana frigga (Becklin in Thunberg, 1791) (= Boloria frigga) - Frigga's Fritillary.

This species always lives in moist habitats, such as raised bogs, peat-moss open woodland, tundras, including analogous biotopes in the mountains. In the Altai Mts. it is found usualy above 2000 m on vary damp, boggy patches among apline meadows and tundras.

Range: The tundra, forest-tundra and northern forest zones of Eurasia and adjacent mountain countries south to Tarbagatai, Mongolia and Sikhote-Alin', the northern Sakhalin.

ssp: alpestris Elwes, 1899; the mountains of S Siberia.

A female, wings open.

Highland dwarf birch tundras on of the southerm principal slope of the Yuzhno-Chuiskii mountain at the the Chikty Rivulet headwaters, 2400 m above sea level, the upper Dzhazator River basin, Kosh-Agach District, Altai Republic, West Siberia, Russia. 15th July 1998. O. Kosterin.