North American Butterflies and Moths List

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Butterflies of North America

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

Dusky-blue Groundstreak (Calycopis isobeon)
distribution map
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