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Butterflies of California -- Lycaena [Tharsalea] arota

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Butterflies of North America

Butterflies of California

Tailed Copper (Lycaena [Tharsalea] arota)
JPG -- species photo

Tailed Copper (Lycaena arota [Boisduval])

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

Identification: Each hindwing of both sexes has a tail. Upper surface of male copper-brown with iridescent purple sheen; female with orange and dark brown pattern. Underside of both sexes gray; forewing with black spots, hindwing with black scrawls and a band of submarginal white crescents.

Life history: Males perch in open areas, often near watercourses or ravines, in the morning to watch for females. Eggs are laid singly on host plant or on debris under it, and hibernate until the following spring. Caterpillars eat leaves.

Flight: One flight from May-August.

Caterpillar hosts: Leaves of gooseberry and currant (Ribes species) in the Grossulariaceae family.

Adult food: Flower nectar.

Habitat: Open mixed woodland, sagebrush, chaparral.

Range: New Mexico north and west to Oregon, south to southern California and Baja California.

Conservation: Clouded copper, subspecies nubila, has greatly declined in the vicinity of Los Angeles, California.

Lycaena arota nubila has The Nature Conservancy rank of T1 - Critically imperiled because of extreme rarity (5 or fewer occurrences, or very few remaining individuals), or because of some factor of its biology making it especially vulnerable to extinction. (Critically endangered throughout its range).

Management needs: Conserve remaining habitat of clouded copper. Consider habitat rehabilitation and reintroduction.

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.
Tailed Copper (Lycaena [Tharsalea] arota)
distribution map
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