''Eurema boisduvaliana'', commonly known as Boisduval's yellow, is a

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

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 from Costa Rica north to Mexico. Rare strays may be found in southern

Florida Florida is a state located in the Southeastern region of the United States. Florida is bordered to the west by the Gulf of Mexico, to the northwest by Alabama, to the north by Georgia, to the east by the Bahamas and Atlantic Ocean, and to ...

, but it is a regular migrant to south-eastern

Arizona Arizona ( ; nv, Hoozdo Hahoodzo ; ood, Alĭ ṣonak ) is a state in the Southwestern United States. It is the 6th largest and the 14th most populous of the 50 states. Its capital and largest city is Phoenix. Arizona is part of the Fou ...

, south-western

New Mexico ) , population_demonym = New Mexican ( es, Neomexicano, Neomejicano, Nuevo Mexicano) , seat = Santa Fe , LargestCity = Albuquerque , LargestMetro = Tiguex , OfficialLang = None , Languages = English, Spanish ( New Mexican), Navajo, Ker ...

, and southern

Texas Texas (, ; Spanish language, Spanish: ''Texas'', ''Tejas'') is a state in the South Central United States, South Central region of the United States. At 268,596 square miles (695,662 km2), and with more than 29.1 million residents in 2 ...

. The habitat consists of subtropical forests and forest edges, scrubs, roadsides and pastures.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 of ...

is . The upperside is lemon yellow with black borders. Each hindwing is slightly pointed. There is a weak "dog's head" pattern on the male forewing. The hindwings have a wide black border projecting into a yellow ground colour. The female forewing is black at the apex and the hindwing has a narrow black edge. Adults are on wing from April to November in southern Texas and northward. They are on wing year round in the tropics. Adults feed on flower nectar. The larvae feed on '' Cassia'' species.

Taxonomy

''Eurema boisduvaliana'' is treated as a subspecies of ''

Eurema arbela ''Eurema'' is a widespread genus of grass yellow butterflies in the family Pieridae. Species range from Asia, Africa, Australia, and Oceania, to the New World. The type species is the North American barred yellow (''Eurema daira''). There ...

'' by most authors.

References

boisduvaliana Butterflies of North America Butterflies of Central America Butterflies of the Caribbean Butterflies described in 1865 Taxa named by Baron Cajetan von Felder Taxa named by Rudolf Felder {{Pieridae-stub