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Butterflies of Mississippi -- Calycopis isobeon

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Butterflies of North America

Butterflies of Mississippi

Dusky-blue Groundstreak (Calycopis isobeon)
JPG -- species photo

Dusky-blue Groundstreak (Calycopis isobeon [Butler & Druce])

Wing span: 7/8 - 1 1/4 inches (2.2 - 3.2 cm).

Identification: Two tails on the hindwing. Underside of both wings gray-brown; inner edge of postmedian line bordered narrowly with red-orange. Underside of hindwing has eyespot at lower apex with equal amounts of orange and black.

Life history: Eggs are laid in leaf litter on the ground. Caterpillars eat dead leaves and fruits, and detritus.

Flight: Many flights from January-September in Texas and Mexico.

Caterpillar hosts: Dead leaves and fruits, and detritus, especially under trees in the cashew family (Anacardiaceae).

Adult food: Flower nectar.

Habitat: Subtropical valley bottoms and lowland forest edges.

Range: Venezuela north through Central America and Mexico to central and South Texas. Strays into Mississippi and Kansas.

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:

Layberry, R.A., Hall, P.W. & Lafontaine, D.J., 1998.  The Butterflies of 
     Canada.  University of Toronto Press, Toronto, ON.  280 pp. 

Mather, B. and Mather, K.  1958.  The Butterflies of Mississippi.  Tulane 
     Studies in Zoology 6:63-109.
     
Opler, P.A. 1998. A field guide to eastern butterflies, revised format.
     Houghton Mifflin Co., Boston.      
Dusky-blue Groundstreak (Calycopis isobeon)
distribution map
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