North American Butterflies and Moths List

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Butterflies of North America

Butterflies of Virginia

Gemmed Satyr (Cyllopsis gemma)
JPG -- species photo

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.

The Nature Conservancy Global Rank: G5 - Demonstrably secure globally, though it may be quite rare in parts of its range, especially at the periphery.

Management needs: None reported.

References:

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:

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.    

Clark, A.H. and Clark, L.F. 1951.  The Butterflies of Virginia.  Smithsonian
     Miscellaneous collection No. 116:1-239.

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.     

Woodbury, E.N.  1994.  Butterflies of Delmarva.  Delaware Nature Society, Inc., 
     Tidewater Publishers, Centreville, MD.  138 pp.  [NOTE: this book only 
     treats True Butterflies (Papilionoidea).  It does not treat Skippers 
     (Hesperioidea).]
Gemmed Satyr (Cyllopsis gemma)
distribution map
map legend

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