This species ranges from southern British Columbia, south through the Pacific Northwest, and along the coast of California; and from parts of Idaho and western Montana to Wyoming, Utah, and Colorado.
It occurs in forests, mountain meadows, canyons, and along streams.
Caterpillars feed primarily on the leaves of gooseberry and currants (Ribes
Adult: Butterflies feed on the liquids from sap, fruit, and mud, and only occasionally on flower nectar.
There is typically one generation of caterpillars each summer. Caterpillars rest on stems or the undersides of leaves, in a bent position. Butterflies emerge from chrysalises mid- to late summer, feed, then overwinter in a physiological state called diapause until spring. In early spring, they emerge to mate and lay eggs. The northwestern variety is uncommon.
Males perch to wait for receptive females. Females lay eggs singly on the leaves of host plants.
|Idaho Status:||Unprotected nongame species.|
G5; populations are widespread, abundant, and secure.
Opler, P. A., H. Pavulaan, and R. E. Stanford. 1995. Butterflies of North America. Jamestown, North Dakota, USA: Northern Prairie Wildlife Research Center Home Page. http://www.npwrc.usgs.gov/resource/distr/lepid/bflyusa/bflyusa.htm (Version 05Nov98).
Opler, P. A. and A. B.Wright. 1999. A Field Guide to the Western Butterflies. Second Edition. Peterson Field Guide Series. Houghton Mifflin Company, New York, New York, USA, 540 pp.
Pyle, R. M. 1981. National Audubon Society Field Guide to North American Butterflies. Alfred A. Knopf, Inc., New York, New York, USA, 924 pp.
Scott, J. A. 1986. The Butterflies of North America. Stanford University Press, Stanford, California, USA, 583 pp.
Stanford, R. E. and P. A. Opler. 1993. Atlas of Western U.S.A. Butterflies (Including Adjacent Parts of Canada and Mexico). Published by authors, Denver, Colorado, USA, 275 pp.