Not much chance of finding one. The closest part of their range to Dallas is probably Val Verde county which is about a 6 hour drive south west. If you can find the time to get down their then you will also have the problem of finding some land to collect them on....best bet would be flipping rocks all day along the roads and then road hunting at night....but temps may not be high enough for road hunting.
:I am traveling to Dallas the week of April 13-21. I am hoping to find a good spot to go herping with my son. We'll be in town for the Dallas Cup(soccer). He's playing U-14 :-) We're looking for Texas Banded Geckos. Any help would be appreciated. Also, any local shops that might handle them would be great to know of as well. Thanks for any help