North American Ecology (US and Canada)
provided by North American Butterfly Knowledge Network
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 and SALICACEAE. There is one flight each year with the approximate flight time JUNE1-JUL15 (Scott 1986). Sometimes includes Colias canadensis as a subspecies (Scott 1986).
