North American Butterflies and Moths List

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Butterflies of North America

Butterflies of Oregon

Nelson's Hairstreak (Callophrys [Mitoura] nelsoni)
JPG -- species photo

Nelson's Hairstreak (Callophrys nelsoni [Boisduval])

Wing span: 1 - 1 1/8 inches (2.5 - 2.9 cm).

Identification: Upperside of male is dark brown with rusty orange patches on lower outer edges of wings; female is mostly tawny with dark margins. Underside is brown with a lilac tinge; hindwing postmedian line may be reduced or it is dark and usually outlined in white.

Life history: To seek females, males perch on host trees all day. Eggs are laid singly on tips of host plant leaves, which the caterpillars eat. Chrysalids hibernate.

Flight: One brood from May-July.

Caterpillar hosts: Incense cedar (Calocedrus decurrens), western red-cedar (Thuja plicata).

Adult food: Flower nectar including buckbrush, pussy-paws, and composites.

Habitat: Openings in coniferous forests.

Range: Southern British Columbia and northwest Montana south through Washington, Oregon, Idaho, and Nevada to the high-altitude mountains of southern California and Baja California Norte.

Conservation: Not usually of concern.

The Nature Conservancy Global Rank: G4 - Apparently secure globally, though it might be quite rare in parts of its range, especially at the periphery.

Management needs: None reported.

References:


Emmel, T.C. and J.F. Emmel. 1973. The butterflies of southern California. Natural 

     History Museum of Los Angeles County, Los Angeles. 148 pages.



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

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

Nelson's Hairstreak (Callophrys [Mitoura] nelsoni)
distribution map
map legend

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