Description: 13-19 mm. Males are yellow with black boarders. Females are more pale in color but with black boarders. There is a large orange spot on the ventral hindwing. This species is very similar to the Jamaican Sulphur and can be very difficult to differentiate in the wild. 

 

Habitat and Distribution: This species is widespread and common and has been reported in most of the Keys and can be found in weedy fields and other disturbed habitats. It frequents the slash pines of Big Pine Key.

 

Host Plant: Partridge pea (Cassia fasciculata)

 

Natural History: This species is common in the eastern United States, Central and South America and quite common in Florida. They can be found flying almost all year in the Keys.