North American Ecology (US and Canada)

Resident in northern North America (Scott 1986). Habitats are LUSH ARCTIC/ALPINE ZONE TUNDRA AND HUDSONIAN TAIGA. Host plants are usually herbaceous with most known hosts a few species from Leguminosae. There is one flight each year with the approximate flight time JUNE1-JUL15 (Scott 1986). Sometimes listed as a sub-species of Colias hecla.