North American Butterflies and Moths List

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Butterflies of North America

Butterflies of Oregon

Sheridan's Green Hairstreak (Callophrys sheridani)
JPG -- species photo

Sheridan's Green Hairstreak (Callophrys sheridani [W. H. Edwards])

Wing span: 7/8 - 1 1/8 inches (2.2 - 2.9 cm).

Identification: Upperside dark gray-brown. Underside ranges from bright green to dark gray-green; lower part of forewing gray. Postmedian line of white dots may be straight or bulged out, reduced, or lacking.

Life history: Males perch to watch for females in depressions or gulch bottoms. Females lay eggs singly on host plant leaves. Caterpillars eat leaves, although some prefer flowers and young fruits. Chrysalids hibernate.

Flight: One flight from March-June.

Caterpillar hosts: Various species of wild buckwheat (Eriogonum).

Adult food: Flower nectar.

Habitat: Sagebrush scrub, chaparral, woodlands, subalpine scree.

Range: Southern British Columbia east to Alberta; south through eastern Washington to Sierra Nevada of California; southeast along Rocky Mountains to New Mexico.

Conservation: Not usually required.

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

Management needs: None reported.

References:


Ferris, C.D. and F.M. Brown. 1981. Butterflies of the Rocky Mountain States. 

     University of Oklahoma Press, Norman. 442 pages.



Garth, J.S. and J.W. Tilden. 1986.California Butterflies. University of California 

     Press, Berkeley and Los Angeles. 246 pp, 24 plates.



Layberry, R.A., P.W. Hall, and J.D. Lafontaine. 1998. The Butterflies of Canada. 

     University of Toronto Press, Toronto. 282 pages, 32 color plates.



Opler, P.A. 1999. A field guide to western butterflies.  Houghton-Mifflin Co., 

     Boston, Mass. 540 pages, 44 color plates.



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

     Stanford, Calif. 583 pages, 64 color plates.



Stanford, R. E. and P. A. Opler. 1993. Atlas of western USA butterflies including 

     adjacent parts of Canada and Mexico. Denver and Fort Collins, CO. 

Author: Jane M. Struttmann

State and Regional References:


Dornfeld, E. J. 1980. The Butterflies of Oregon. Forest Grove, 	Ore., Timber 

     Press.



Hinchliff, J. 1994. An atlas of Oregon Butterflies. Oregon State University

     Bookstore, Corvallis.



Hinchliff, J. 1994. The distribution of the butterflies of Oregon. Evergreen 

     Aurelians. Oregon State University Bookstore, Corvallis, 176 pp. + map. 



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.

Sheridan's Green Hairstreak (Callophrys sheridani)
distribution map
map legend

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