North American Butterflies and Moths List

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U.S. Geological Survey

Butterflies of North America

Butterflies of Nevada

Silver-banded Hairstreak (Chlorostrymon simaethis)
JPG -- species photo

Silver-banded Hairstreak (Chlorostrymon simaethis [Drury])

Wing span: 7/8 - 1 1/4 inches (2.2 - 3.2 cm).

Identification: Upperside of male brown with purple iridescence; female dull gray. Underside of both wings green with silver-white postmedian band.

Life history: Eggs are laid singly on host plant fruits; caterpillars live inside the fruit pod and eat the young seeds.

Flight: Two flights from August-December.

Caterpillar hosts: In Florida: Balloon vine (Cardiospermum halicacabum) of the soapberry family (Sapindaceae). Many other hosts in other parts of the range.

Adult food: Nectar from flowers of balloon vine and Antigonon leptotus.

Habitat: Openings and edges of dry tropical forests or scrub, Sonoran Desert.

Range: Argentina north to southern Arizona, South Texas, southern Florida and the Keys.

Conservation: Habitats in United States are limited in extent.

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: Preserve all possible native habitats in United States.


Opler, P. A. and G. O. Krizek. 1984. Butterflies east of the  Great Plains. Johns 
    Hopkins University Press, Baltimore. 294 pages, 54 color plates.

Opler, P. A. and V. Malikul. 1992. A field guide to eastern  butterflies. Peterson 
    field guide #4. Houghton-Mifflin Co.,  Boston. 396 pages, 48 color plates.

Scott, J. A. 1986. The butterflies of North America. Stanford  University Press, 
    Stanford, Calif. 583 pages, 64 color plates.

Smith, D. S., L. D. Miller, and J. Y. Miller. 1994. The butterflies of the West 
    Indies and South Florida. Oxford University Press, Oxford. 264 pages, 32 
    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:

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

Layberry, R.A., Hall, P.W. & Lafontaine, D.J., 1998.  The Butterflies of 
     Canada.  University of Toronto Press, Toronto, ON.  280 pp. 

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.
Silver-banded Hairstreak (Chlorostrymon simaethis)
distribution map
map legend

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