Epidromia rotundata - Hodges#8585.3
(Ferguson's Epidromia Moth).
Photo: 09/16/18, 10 pm.

In the US, Epidromia rotundata is mainly found in the Deep South (FL, AL, GA) and Texas. This fairly large (wingspan 40-45 mm), brown moth can have a purplish tint and is one of only three Epidromia species north of Mexico. 
bug guide (this photo):