''Ganyra howarthi'', Howarth's white, is a

butterfly Butterflies are insects in the macrolepidopteran clade Rhopalocera from the order Lepidoptera, which also includes moths. Adult butterflies have large, often brightly coloured wings, and conspicuous, fluttering flight. The group comprises ...

in the family

Pieridae The Pieridae are a large family of butterflies with about 76 genera containing about 1,100 species, mostly from tropical Africa and tropical Asia with some varieties in the more northern regions of North America and Eurasia.DeVries P. J. in Levi ...

. It is found along the coast in the southern half of

Baja California Baja California (; 'Lower California'), officially the Free and Sovereign State of Baja California ( es, Estado Libre y Soberano de Baja California), is a state in Mexico. It is the northernmost and westernmost of the 32 federal entities of Mex ...

and

Sonora Sonora (), officially Estado Libre y Soberano de Sonora ( en, Free and Sovereign State of Sonora), is one of the 31 states which, along with Mexico City, comprise the Federal Entities of Mexico. The state is divided into 72 municipalities; the ...

Mexico Mexico ( Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guate ...

. It is also found in extreme southern

Arizona Arizona ( ; nv, Hoozdo Hahoodzo ; ood, Alĭ ṣonak ) is a U.S. state, state in the Southwestern United States. It is the list of U.S. states and territories by area, 6th largest and the list of U.S. states and territories by population, 14 ...

. The habitat consists of thorn forests and desert scrubs.Butterflies and Moths of North America
/ref> The

wingspan The wingspan (or just span) of a bird or an airplane is the distance from one wingtip to the other wingtip. For example, the Boeing 777–200 has a wingspan of , and a wandering albatross (''Diomedea exulans'') caught in 1965 had a wingspan ...

is . The upperside is white. The forewing has black wedges at the apex and outer margins and a black cell spot. The female forewing markings are more diffuse, with additional postmedian black spots. Adults are on wing year round in Baja California. They feed on flower nectar. The larvae feed on ''

Atamisquea emarginata ''Morisonia'' is a genus of flowering plants in the family Capparaceae, found across the Americas from the United States to Argentina. It was recently enlarged with New World ''Capparis'' species due to existing taxonomic instability. They tend t ...

'' in southern Arizona.

References

Pierini Butterflies described in 1915 {{Pieridae-stub