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Butterflies of Oregon -- Callophrys [Loranthomitoura] johnsoni

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Butterflies of North America

Butterflies of Oregon

Johnson's Hairstreak (Callophrys [Loranthomitoura] johnsoni)
JPG -- species photo

Johnson's Hairstreak (Callophrys johnsoni [Skinner])

Wing span: 1 1/4 - 1 3/8 inches (3.2 - 3.5 cm).

Identification: Upperside of males rusty brown, females more orange. Underside gray-brown, darker toward wing bases. Postmedian line is white bordered with black on the inside edge.

Life history: Eggs are laid on the host; caterpillars feed on all exposed parts of the plant. Chrysalids hibernate in the mistletoe mass.

Flight: One flight from May-July.

Caterpillar hosts: Pine dwarf mistletoe (Arceuthobium campylopodum) which grows on conifers.

Adult food: Flower nectar.

Habitat: Coniferous forests, especially old-growth.

Range: Very local and scarce. Pacific Slope mountains from British Columbia south to central California.

Conservation: All populations are worthy of conservation concern.

The Nature Conservancy Global Rank: G3 - Very rare or local throughout its range or found locally in a restricted range (21 to 100 occurrences). (Threatened throughout its range).

Management needs: Maintain old-growth forests with this species' habitat requirements.

References:

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:

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.
Johnson's Hairstreak (Callophrys [Loranthomitoura] johnsoni)
distribution map
map legend

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