On my way down to the Texas Master Naturalist state conference, I stopped at a few state parks I hadn't been to before.
Lake Livingston State Park is a really nice place. It was starting to rain on me a little bit, so I couldn't stay as long as I wanted to. Cool stuff observed nonetheless! :)
Possibly Parancistrocerus declivatus
The Sphecidae (Latreille, 1802) are a cosmopolitan family of wasps that include digger wasps, mud daubers, and other familiar types that all fall under the category of thread-waisted wasps. Both of the traditional definitions of the Sphecidae (the conservative one, where all the sphecoid wasps other than ampulicids and heterogynaids were in a single large family, and the more refined one, where the seven large sphecid subfamilies were each elevated to family rank) have recently been...