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No Common Name (Ganyra howarthi [Dixey])
Wing span: 1 3/4 - 1 7/8 inches (4.5 - 4.8 cm).
Identification: Upperside white. Forewing with black wedges at apex and outer margins; black cell spot. Female forewing markings more diffuse, with additional postmedian black spots.
Life history: Not reported.
Flight: Throughout the year in Baja California.
Caterpillar hosts: Atamisquea emarginata (Capparidaceae) in southern Arizona.
Adult food: Flower nectar.
Habitat: Thorn forest and desert scrub.
Range: Along the coasts in the southern half of Baja California and Sonora, Mexico. Resident in extreme southern Arizona.
Conservation: Conserve habitat with host plants.
Management needs: Refrain from destroying habitat in United States.
References:
Bailowitz, R. A. 1988. Systematics of Ascia (Ganyra) (Pieridae)
populations in the Sonoran desert. Journal of the Research on the
Lepidoptera 6: 73-81.
Brown, J. W., Real, H. G., and Faulkner, D. K. Butterflies of Baja Cali-
fornia. 1992. Lepidoptera Research Foundation, Inc., Beverly Hills,
CA. 129 pages, 8 color plates.
Author: Jane M. Struttmann
State and Regional References:
Bailowitz, R. A. and J. P. Brock. 1991. Butterflies of Southeastern Arizona.
Tucson, Ariz.: Sonoran Arthropod Studies, Inc.
Garth, J.S. 1950. Butterflies of Grand Canyon National Park. Grand Canyon
Natural History Association, Grand Canyon, Ariz.
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.
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