Yes Debra, it's a Bee Fly in the family Bombyliidae, they are parasitic to bee nests.
There's several which are very similar in your part of the world, Hemipenthes sinuosa looks to be the best match.
http://bugguide.net/node/view/...
http://bugguide.net/node/view/...
Other similar ones which may or may not be in TX ..
http://bugguide.net/node/view/...