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 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).
- Scott, J. A. 1986. The butterflies of North America. Stanford University Press.
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