Cobweb Skipper (Hesperia metea Scudder)
Wing span: 1 1/8 - 1 3/8 inches (2.9 - 3.5 cm).
Identification: Wings are dark brown or blackish with few light areas. Underside of hindwing has a cobwebbed appearance due to white spots extending along the veins. Subspecies licinus in Texas and Arkansas is very dark both above and below.
Life history: To wait for females, males perch near the host plants all day. Females lay eggs singly on or near the host plants. Caterpillars eat leaves and live in nests of rolled or tied leaves. Fully-grown caterpillars hibernate.
Flight: One brood from late March to early June.
Caterpillar hosts: Beard grasses including little bluestem (Andropogon scoparius and A. s. var. glomeratus) and big bluestem (A. gerardi).
Adult food: Nectar from flowers of low-growing plants such as Labrador tea, wild strawberry, blackberry, bird's-foot violet, winter cress, and red clover; also lilac, vervain, Carolina larkspur, and wild hyacinth.
Habitat: Dry, grassy openings in woods, pine barrens, oak savannah, open sandy scrub, burned areas, old pastures.
Range: Patchy distribution from southern Maine west to Wisconsin; south to central Georgia, the Gulf States, and central Texas.
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.
Opler, P. A. and G. O. Krizek. 1984. Butterflies east of the Great Plains. Johns Hopkins University Press, Baltimore. 294 pages, 54 color plates. 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. 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.
Author: Jane M. Struttmann
State and Regional References:
Glassberg, J. 1993. Butterflies Through Binoculars: A Field Guide to Butterflies in the Boston-New York-Washington Region. Oxford Univ. Press, New York, N.Y. 160 pp. Layberry, R.A., Hall, P.W. & Lafontaine, D.J., 1998. The Butterflies of Canada. University of Toronto Press, Toronto, ON. 280 pp. Opler, P.A. 1998. A field guide to eastern butterflies, revised format. Houghton Mifflin Co., Boston. Shapiro, A.M. 1966. Butterflies of the Delaware Valley. American Entomological Society Special Publication. Philadelphia, PA. 79 pp. Tietz, H.M. 1952. The Lepidoptera of Pennsylvania. The Pennsylvania State College School of Agriculture Agricultural Experiment Station. State College, PA. 194 pp. Wright, D.M. 1995, Atlas of Pennsylvania Butterflies. Special Private Publication, Lansdale, PA. 22 pp.