Resembles Urbanus proteus, but that species has a green iridescence on the body dorsally. In both species it is common to find individuals with broken tails.
Caterpillars feed on Tick-trefoil and other members of Fabaceae.
Range: Georgia to Texas, south to Brazil, and including the West Indies and Galapagos Islands.
Photo location: Big Cypress Preserve, Florida (upper photo); Paramaribo, Suriname (lower photo).
American Insects site