Heterocampa guttivitta - Hodges#7994
 
 
 
(Saddled Prominent).
 
 
 
Size: approx. 25 mm. Photo: 06/07/15, 11 pm.


This fairly large moth is probably Heterocampa guttivitta. Misogada unicolor looks very similar but is usually not found in Florida. 
 
 
bug guide (this photo):
http://bugguide.net/node/view/1080382