Alkali Skipper (Pseudocopaeodes eunus [W. H. Edwards])
Wing span: 1 - 1 1/4 inches (2.5 - 3.2 cm).
Identification: Upperside is bright brownish orange to yellowish orange with dark narrow borders and dark vein ends. Male forewing has a narrow black stigma which runs diagonally. Underside is dull yellow; veins may or may not be dark. There are usually 2 pale rays on the hindwing.
Life history: Not reported.
Flight: Several flights from April-September.
Caterpillar hosts: Desert salt grass (Distichlis spicata var. stricta).
Adult food: Flower nectar.
Habitat: Grassy spots on alkali flats.
Range: Southern Nevada south through eastern and southern California to Baja California Norte.
Conservation: Not usually required.
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.
Scott, J. A. 1986. The butterflies of North America. Stanford University Press, Stanford, Calif. 583 pages, 64 color plates. Stanford, R. E. and P. A. Opler. 1993. Atlas of western USA butterflies including adjacent parts of Canada and Mexico. Denver and Fort Collins, CO. Tilden, J. W. 1986. A field guide to western butterflies. Houghton-Mifflin Co., Boston, Mass. 370 pages, 23 color plates.
Author: Jane M. Struttmann
State and Regional References:
Emmel, T.C. Editor. 1998. Systematics of western North American butterflies. Mariposa Press, Gainesville, Florida. Layberry, R.A., Hall, P.W. & Lafontaine, D.J., 1998. The Butterflies of Canada. University of Toronto Press, Toronto, ON. 280 pp. 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.