Moved from Moths.

This is another eastern-USA species of Battaristis, B. concinusella. A good example is shown here. Note that the ground color of B. concinusella is a medium gray, as in your moth. Battaristis nigratomella, on the other hand, presents a noticeably paler aspect, with the costal edge of the forewing pure white in the basal half. For a good example, see here. Also, in B. concinusella, the roughly triangular patch at the very apex of the forewing (just anterad of the black dash) tends to appear speckled gray (each scale is gray with a whitish apex), whereas in B. nigratomella it is white.