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Butterflies of New Mexico -- Cercyonis oetus

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Butterflies of North America

Butterflies of New Mexico

Small Wood Nymph (Cercyonis oetus)
JPG -- species photo

Small Wood Nymph (Cercyonis oetus [Boisduval])

Wing span: 1 1/4 - 1 3/4 inches (3.2 - 4.5 cm).

Identification: Wings are light to very dark brown; wing fringes are checkered. Upperside of forewing usually has 1 eyespot in the male, 2 eyespots in the female; upper eyespot is larger. Underside of forewing of both sexes has lower eyespot smaller and nearer to the wing edge than the upper eyespot.

Life history: Males patrol all day for females, who deposit eggs singly on the host plant. First-stage caterpillars hibernate unfed until the following spring.

Flight: One brood from June-August.

Caterpillar hosts: Unknown grasses.

Adult food: Flower nectar.

Habitat: Dry chaparral, sagebrush, grasslands, scrub, open woodland, meadows.

Range: British Columbia east to southern Saskatchewan and western North Dakota; south to eastern California, Nevada, central Arizona, and New 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:

Scott, J. A. 1986. The butterflies of North America. Stanford University Press, 
     Stanford, Calif. 583 pages, 64 color plates.

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:

Ferris, C.D. and F.M. Brown. 1980. Butterflies of the Rocky Mountain States. 
     University of Oklahoma Press. Norman.

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.

Add Toliver, M., Holland, R., and S.J. Cary. 1996. Distributional data
     for New Mexico Butterflies. Privately published. Albuquerque, N.M.
Small Wood Nymph (Cercyonis oetus)
distribution map
map legend

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