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Stallings' Flat (Celaenorrhinus stallingsi H. A. Freeman)
Wing span: 1 3/8 - 1 3/4 inches (3.5 - 4.5 cm).
Identification: Upperside is dark brown; forewing has a wide transparent band of spots. Fringes are brown. Underside of forewing is pale yellow in the lower corner.
Life history: Adults fly at dusk and sometimes at dawn. They rest in caves, under highway bridges, and under ledges and leaves during the day.
Flight: May-November in South Texas; March-November in Mexico.
Caterpillar hosts: Not reported.
Adult food: Nectar of flowers including that of papaya.
Habitat: Subtropical.
Range: Costa Rica north through Mexico. A periodic stray to the lower Rio Grande Valley, Texas.
Conservation: Status in the lower Rio Grande Valley should be determined.
The Nature Conservancy Global Rank: G4 - Apparently secure globally, though it might be quite rare in parts of its range, especially at the periphery.
Management needs: None reported.
References:
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
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