The closest thing I've found on the internet is the paper wasp for
resemblance. 2 exceptions. Way to small, and the abdomen is red in color
as well. What is it?
Paper wasp:
http://insects.tamu.edu/fieldguide/cimg348.html

Looks like this, definitely.
http://home.att.net/~larvalbugbio/be...beast3-05.html

Ones I've seen west of Wimberley approach 3" in length. A sting from one of
these is no joke. Pain lasts for hours. No, not allergic.
Dave