North American Butterflies and Moths List

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Butterflies of North America

Butterflies of Texas

Ruddy Hairstreak (Electrostrymon sangala)
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Ruddy Hairstreak (Electrostrymon sangala [Hewitson])

Wing span: 7/8 - 1 inch (2.2 - 2.6 cm).

Identification: Two tails on the hindwing. Upperside orange to orange-brown; underside tan with red postmedian line.

Life history: In Colombia, males perch on hilltop shrubs to seek receptive females.

Flight: Many broods from April-December in South Texas; from April-January in Central America.

Caterpillar hosts: : Flowers of coral-bean (Erythrina), probably others.

Adult food: Flower nectar from many plants including Waltheria and Casearia.

Habitat: Openings and edges in tropical semideciduous river forests, second growth, tropical thorn-scrub.

Range: South Texas through Central America to Venezuela.

Conservation: Any permanent U.S. populations should be protected.

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: Locate populations and protect their habitat.


Neck, R.W. 1996. A field guide to butterflies of Texas. Gulf Publishing Co., 
     Houston, Texas. 323 pp.

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.

Author: Jane M. Struttmann and Paul A. Opler

State and Regional References:

Neck, R.W. 1996. A Field Guide to Butterflies of Texas. Gulf Publishing Co., 
     Houston, Texas.

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.
Tveten, J. and Tveten, G.  1996.  Butterflies of Houston & Southeast Texas.
     Univ. of Texas Press, Austin, TX.  292 pp.
Ruddy Hairstreak (Electrostrymon sangala)
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