North American Butterflies and Moths List

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Butterflies of North America

Mottled Longtail (Typhedanus undulatus)
JPG -- species photo

Mottled Longtail (Typhedanus undulatus [Hewitson])

Wing span: 1 5/8 - 1 7/8 inches (4.2 - 4.8 cm).

Identification: Hindwing with a long tail. Wings are dark brown. Underside of hindwing is striated with broken black lines.

Life history: Early stages are not reported. Males perch on hilltops to await receptive females.

Flight: August-October in South Texas, December-May in the tropics.

Caterpillar hosts: Sennas (Cassia species) in the pea family (Fabaceae).

Adult food: Flower nectar.

Habitat: Arid chaparral.

Range: Argentina north through tropical America to Mexico. Occasionally strays to the lower Rio Grande Valley, Texas.

Conservation: Not necessary for a rare stray.

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.


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

Mottled Longtail (Typhedanus undulatus)
distribution map
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