Anavitrinella pampinaria - Hodges#6590 (Common Gray).
Size: approx. 25-30 mm. Photo: 09/13/14, 10 pm.

The Common Gray can be found in most parts of North America. The color of its wings varies from medium gray to light yellowish-gray with heavy dark gray or black mottling. The larvae are light brown and mimic twigs. They are known to feed on apple, ash, clover, elm, pear, poplar, and willow.  
bug guide (this photo):