My guess is a very tattered male Orange Sulphur or Colias eurytheme. I am basing this on the orange that is visible on the hindwing, the head coloring, the shape of the wings, the black showing through, and the location.

Sandy

Angie,
Great find, and especially to get a pretty good picture of it. Looks like either an environmentally induced aberrant, or maybe a masaic gynandromorph. If either not much can be trusted beyond a clue. Possibly Phoebis philea, maybe sennae, or even agarithe that strayed up from Florida.
L.

Thanks Sandy and Larry! Was hoping you guys would stop in and see this. I have been helping my sister to plant and manage her 1st butterfly garden this year, and she is really getting some interesting visitors. She had a nice Banded Hairstreak the other day, and I have never seen one in my yard. She is only a 15 min drive down the road. She sent this pic to me hoping for an ID, and I was shocked to be so stumped. The only Sulphurs I get here in my yard are the Sleepy Orange, Cloudless, and an occasional Orange Sulphur.~~Angie

Any other learned opinions as to the ID???~~Angie

It looks like it's probably a very worn little yellow, Angie. They're common in my garden, and they use sennas/cassias as host plants. You can find the cats eating cassia leaves right next to the sleepy oranges, and they're almost impossible to tell apart.
Sherry

Oh Sherry...thank you soooo much. That helps us a whole lot. I don't see them here in my yard, but my sister seems to be getting in many butterflies that I have never seen in my yard. She's only 15 min down the road. It's amazing how much difference there can be with a change of location and terrain. I did plant some Velvet leaf Senna and some Candlestick Cassia in her garden. :o)