We had some extensive discussion about the identity of this moth at http://www.inaturalist.org/observations/2356269 and http://www.inaturalist.org/observations/2356248. The most significant feature separating this individual from an Eight-spotted Forester is the bulge on the costa subtended by a hyaline patch. The relevant resources we uncovered are as follows:

http://www.nearctica.com/moths/noctuid/agarista/alypia_disparata.htm
http://archive.org/stream/papilio41884edwa#page/12/mode/1up
http://mothphotographersgroup.msstate.edu/pinned.php?plate=29&sort=h&state=TX