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Sonoran Hairstreak (Hypostrymon critola [Hewitson])
Wing span:
Identification: Upperside blue; male with large black spot. Underside gray with darker streaks and orange postmedian line.
Life history:
Flight: May and September in Arizona, throughout the year in Mexico.
Caterpillar hosts:
Adult food: Flower nectar.
Habitat: Desert scrub along streamsides.
Range: Southwest Mexico into southern Arizona; southern Baja California.
Conservation: Any United States populations should be conserved.
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: None reported.
References:
Brown, J. W., H. G. Real, and D. K. Faulkner. Butterflies of Baja California.
1992. Lepidoptera Research Foundation, Inc., Beverly Hills, CA. 129 pages,
8 color plates.
Scott, J. A. 1986. The butterflies of North America. Stanford University Press,
Stanford, Calif. 583 pages, 64 color plates.
Author: Jane M. Struttmann
State and Regional References:
Bailowitz, R. A. and J. P. Brock. 1991. Butterflies of Southeastern Arizona.
Tucson, Ariz.: Sonoran Arthropod Studies, Inc.
Garth, J.S. 1950. Butterflies of Grand Canyon National Park. Grand Canyon
Natural History Association, Grand Canyon, Ariz.
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.
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 1999 -
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