North American Butterflies and Moths List

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Butterflies of North America

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

Ruddy Hairstreak (Electrostrymon sangala)
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