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Butterflies of Idaho -- Colias pelidne

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Butterflies of North America

Butterflies of Idaho

Pelidne Sulphur (Colias pelidne)
JPG -- species photo

Pelidne sulphur (Colias pelidne Boisduval & LeConte)

Wing span: 1 1/4 - 1 3/4 inches (3.2 - 4.4 cm).

Identification: Upperside of male pale yellow with wide black border and small black cell spot. Female white (most common) or yellow; dark border may be incomplete. Underside of hindwing of both sexes with dense black scales.

Life history: Males patrol near blueberry and willows for females.

Flight: One flight from late June-July.

Caterpillar hosts: Blueberry (Vaccinium species) and wintergreen (Gaultheria humifusa) in the heath family (Ericaceae).

Adult food: Flower nectar.

Habitat: Arctic tundra, subarctic forest openings and meadows.

Range: Northern Rocky Mountains from Alberta south to Wyoming.

Conservation: Not usually required.

Management needs: Not reported.

The Nature Conservancy Global Rank: G5 - Demonstrably secure globally, though it may be quite rare in parts of its range, especially at the periphery.

References:

Opler, P. A. and V. Malikul. 1992. A field guide to eastern  butterflies.
     Peterson field guide #4. Houghton-Mifflin Co.,  Boston. 396 pages, 
     48 color plates.

Scott, J. A. 1986. The butterflies of North America. Stanford  University 
     Press, Stanford, Calif. 583 pages, 64 color plates.

Tilden, J. W. 1986. A field guide to western butterflies.  Houghton-Mifflin 
     Co., Boston, Mass. 370 pages, 23 color plates.

Author: Jane M. Struttmann

State and Regional References:

Ferris, C.D. and F.M. Brown. 1980. Butterflies of the Rocky Mountain States. 
     University of Oklahoma Press. Norman.

Layberry, R.A., Hall, P.W. & Lafontaine, D.J., 1998.  The Butterflies of 
     Canada.  University of Toronto Press, Toronto, ON.  280 pp. 

Opler, Paul A. 1999. Peterson Field Guide to Western Butterflies, revised 
     edition. Houghton Mifflin Co., Boston, Mass.

Stanford, R.E. and P.A. Opler. 1993. Atlas of Western USA Butterflies. 
     Privately published, Denver, Colo.

Tilden, J.W. and A.C. Smith. 1986. A Field Guide to Western Butterflies. 
     Houghton Mifflin Co., Boston, Mass.
Pelidne Sulphur (Colias pelidne)
distribution map
map legend

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