On Aug 16, 2006, Magpye from NW Qtr, AR (Zone 6a) wrote:
Wing span: 1 3/8 - 2 1/4 inches (3.5 - 5.7 cm).
Identification: Upperside of wings orange in both sexes; orange-yellow form rare. Forewing with small black cell spot. Male with sharply defined black borders on outer and costal margins; female borders not so well-defined. In winter form, underside of hindwing is brick red, brown, or tan; in summer form it is orange-yellow.
Life history: Males patrol flats and gullies for females. Females lay eggs singly under host plant leaves. Caterpillars eat leaves. Dry season form overwinters and lays eggs in spring.
Flight: Four-five flights, all year long, in southern Texas and Deep South. Mid- to late summer in the north.
Caterpillar hosts: Cassia species in the pea family (Fabaceae).
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On Nov 12, 2006, htop from San Antonio, TX (Zone 8b) wrote:
Synonym name is Abaeis nicippe. I don't know which name is the current acceptable name. I have seen Abaeis nicippe listed as the "standard name" with Eurema nicippe then noted as a synonym. The larger number of images appear when searching for Eurema nicippe so perhaps it is the current acceptable name. Another common name for this butterfly is nicippe sulfur.