I'm usually pretty shy about identifying Phycitine Pyralid moths to species but this seems like a good match to Crocidomera imitata, based on the following characters:

1. Extensive whitish ground color,
2. Distinctive dark dotted PM line and bold dots on terminal line;

3. Extensive dusky mottling near rear margins of FWs, creating a wide dusky patch on the folded wings.
   Compare with MPG and BG:
   http://mothphotographersgroup.msstate.edu/species.php?hodges=5706
   http://bugguide.net/node/view/247452
   The species has previously been recorded in CenTex.