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Butterflies of California -- Lycaena heteronea

North American Butterflies and Moths List

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Butterflies of North America

Butterflies of California

Blue Copper (Lycaena heteronea)
JPG -- species photo

Blue Copper (Lycaena heteronea [Boisduval])

Wing span: 1 1/8 - 1 3/8 inches (2.9 - 3.5 cm).

Identification: Upper surface of male bright blue, with darker veins; female dull blue to dark brown with numerous small dark spots. Underside of both sexes white to yellow-white; hindwing varies from having many to few black spots.

Life history: Most males patrol near host plants for females, but some perch. Females lay eggs singly on bracts under host leaves or umbels; eggs hatch the following spring. Young caterpillars feed on the underside of leaf; older ones eat all parts of the leaf.

Flight: One flight from May-August.

Caterpillar hosts: Wild buckwheat (Eriogonum species) in the buckwheat family (Polygonaceae).

Adult food: Nectar from flowers, including wild buckwheat.

Habitat: Brushy areas, open forest, mountain meadows, sagebrush; mostly at high elevations except for low elevations in central California.

Range: British Columbia south and east through southcentral California, northern Arizona, and northern New Mexico.

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

Varied Copper (subspecies clara) of southern California has been evaluated for conservation, and has The Nature Conservancy rank of T2 - Imperiled because of rarity (6 to 20 occurrences), or because of other factors demonstrably making it very vulnerable to extinction throughout its range. (Endangered throughout its range).

Management needs: None reported.

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:

Brown, J.W., Real, H.G., and D.K. Faulkner. 1992. Butterflies of Baja 
     California. Lepidoptera Research Foundation, Beverly Hills, Calif.

Comstock, J.A. 1927. Butterflies of California. Privately published, Los 
     Angeles, Calif. [Facsimile available from 	Entomological Reprint 
     Specialists, Los Angeles, Calif.]

Dameron, W. 1997. Searching for butterflies in southern California.
     Flutterby Press, Los Angeles, Calif.

Emmel, T.C. Editor. 1998. Systematics of western North American butterflies.
     Mariposa Press, Gainesville, Florida.

Emmel, T. C. and J. F. Emmel. 1973. The Butterflies of Southern California. 
     Natural History Museum of Los Angeles County Science Series No. 26.

Garth, J.S. and J.W. Tilden. 1986. California Butterflies.  California Natural
     History Guide 51. University of California Press, Berkeley and Los 
     Angeles.
     
Langston, R.L. 1981. The Rhopalocera of Santa Cruz Island, California. Journal
     of Research on the Lepidoptera 18: 24-35.     

Miller, Scott E. 1985. Butterflies of the Califorenia Channel Islands. Journal
     of the Research on the Lepidoptera 23: 282-296.     

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

Orsak, L.J. 1977. The Butterflies of Orange County, California. Museum of 
     Systematic Biology, University of california, Irvine.

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

Steiner, J. 1990. Bay Area Butterflies: The Distribution and Natural History 
     of San Francisco Region Rhopalocera. Hayward, Calif.: Hayward State 
     University, Masters Thesis.

Tilden, J.W. and A.C. Smith. 1986. A Field Guide to Western Butterflies. 
     Houghton Mifflin Co., Boston, Mass.

Tilden, J.W. 1965. Butterflies of the San Francisco Bay Region. California 
     Natural History Guide 12. University of California Press, Berkeley and 
     Los Angeles.
Blue Copper (Lycaena heteronea)
distribution map
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