North American Butterflies and Moths List

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Butterflies of North America

Butterflies of Northern Mexico

Sonoran Hairstreak (Hypostrymon critola)
JPG -- species photo

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.


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:

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.
Sonoran Hairstreak (Hypostrymon critola)
distribution map
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