Description:  Ventral sides of male and female are similar. There is a white backround with dark brown mottled spots and a blue spot on the hind wing. Dorsal sides of the sexes differ greatly. Males are blue on top. Females are white and light blue with black markings and a thick black outer wing margin on the forewing.

 

Habitat and Distribution: This species flies in many habitats and is perhaps the most widespread and consistantly abundant species in the Keys. It flies anywhere the host plant grows. It is also common in South Florida.

 

Host Plant: Many plants including (Galactia striata), Plumbago sps. (Lysiloma latisiliquum)

 

Natural History: The cassius blue is a very widespread and abundant species throughout South Florida. It can be found flying in any month.