I’ve seen these creatures a number of times, but they are very shy and dash off quickly.
The Striped Bark Scorpion (Centruroides vittatus) is a nocturnal predator of insects with a broad range extending from Mexico through the southern United States east to Louisiana. Photo and copyright C.Paxton
This specimen is about 2.5 inches long and has pincers with which to clasp its prey while the stinger pierces its chitinous armour and injects venom. The claws then bring the food to its two protuberant jaws, the chelicerae.