Composia fidelissima

Composia fidelissima the faithful beauty or Uncle Sam moth is a moth in the family Erebidae. It is found in southern Florida and the West Indies, including Cuba. The species was first described by Gottlieb August Wilhelm Herrich-Schäffer in 1866.

The wingspan is 48–64 mm. Adults are on wing year round. They are day flying.

The larvae feed on Cynanchum scoparium, Canavalia (including Canavalia rosea), Nerium (including Nerium oleander) and Echites species (including Echites umbellatus).

Subspecies

 * Composia fidelissima fidelissima
 * Composia fidelissima vagrans Bates, 1933