Synchloe callidice (Huebner, 1805). (= Pontia callidice) - Peak White, in its nature highland stony environment.
Range: Polar and mountainous areas of the non-tropical Euroasia, the northern North America, penetrates far into steppen and forest-steppen areas of Siberia.
ssp: nelsoni Edwards, 1883; range: the Polar Siberia, the northern Far East.
A montane tundra at about 1000 m above sea level, the mountains of the Koni Peninsula, Ola District, S Magadan Province, Russia. 23rd July, 1989. Oleg Kosterin.