North American Butterflies and Moths List

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U.S. Geological Survey

Butterflies of North America

Strophius Hairstreak (Allosmaitia strophius)

Strophius Hairstreak (Allosmaitia strophius)

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

Identification: Upperside of male forewing with blue only at inner margin; hindwing blue with scent patch at base. Female gray above, pale brown below.

Life history: Not reported.

Flight: All year in Central America; Texas stray was reported in November.

Caterpillar hosts: Flowers of plants in the Malpighia family.

Adult food: Not reported.

Habitat: Dry and wet subtropical forests and scrub.

Range: Southern Brazil north to Sinaloa, Mexico. One stray recorded in Texas.

The Nature Conservancy Global Rank: G4 - Apparently secure globally, though it might be quite rare in parts of its range, especially at the periphery.

Conservation: Not necessary for rare stray.

Management needs: None reported.


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

Strophius Hairstreak (Allosmaitia strophius)
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