Gemmed Satyr (Cyllopsis gemma [Hübner])
Wing span: 1 3/8 - 1 11/16 inches (3.5 - 4.3 cm).
Identification: Wings are brown and lack eyespots. Underside of hindwing has a silvery patch at the outer margin which contains 4 black reflective spots.
Life history: Males patrol for receptive females. Eggs are laid on or near the host plant. Caterpillars feed at night and hide at the base of the plant during the day. Fourth-stage caterpillars hibernate.
Flight: Several broods all through the year in South Texas; three broods from April-September elsewhere.
Caterpillar hosts: Probably Bermuda grass (Cynodon dactylon).
Adult food: Not reported.
Habitat: Near open, wet woodland; grassy areas near water; near streams and ponds.
Range: Southeastern United States: the Atlantic Coast from Maryland south to central peninsular Florida; west to southeast Kansas, central Oklahoma, central Texas, and northeastern Mexico.
Conservation: Not usually required.
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.
Author: Jane M. Struttmann
State and Regional References:
Neck, R.W. 1996. A Field Guide to Butterflies of Texas. Gulf Publishing Co., Houston, Texas. 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. Tveten, J. and Tveten, G. 1996. Butterflies of Houston & Southeast Texas. Univ. of Texas Press, Austin, TX. 292 pp.