Dahana atripennis (Black-Winged Dahana - Hodges#8266).
Size: approx. 10-15 mm. Photo: 04/28/12, 11 am.

The Black-Winged Dahana (Dahana atripennis) can be found only in the deep South (FL, GA, and SC). Most of its abdomen has a striking orange color and the forewings are dark brown with a small, yellow dash. It belongs to the Tiger Moths. The larvae feed on Spanish moss

bug guide (these photos):
Dalton State: