Falcate Orangetip (Anthocharis midea Hübner)
Wing span: 1 3/8 - 1 3/4 inches (3.5 - 4.5 cm).
Identification: Upperside of male forewing with orange, hooked tip; females hooked, but lack orange; both have round black spot in cell. Underside of hindwing has finely-patterned green marbling.
Life history: Males patrol for females. Only one egg is laid per host plant, singly on a flower stalk. Caterpillars feed on buds, flowers, and seed pods. Chrysalids hibernate.
Flight: One flight from March-June.
Caterpillar hosts: Plants of the mustard (Brassicaceae) family including rock cress (Arabis) and winter cress (Barbarea) species.
Adult food: Flower nectar including flowers of mustards, violets, and others.
Habitat: Open, wet woods along waterways, open swamps, occasionally dry woods and ridgetops.
Range: Southern New England southwest to south Texas, north to eastern Oklahoma and Kansas. Local populations or strays to Florida panhandle, eastern Nebraska, and southern Wisconsin.
Conservation: Not usually required.
Management needs: Not reported.
The Nature Conservancy Global Rank: G5 - Demonstrably secure globally, though it may be quite rare in parts of its range, especially at the periphery.
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
State and Regional References:
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.