Scientific name: Pepsis sp.
Facts: Tarantula hawks are one of the largest species of wasps in Texas. They sting tarantulas, bury them in holes in the ground and lay eggs on them. The larvae of the wasp then feeds on the tarantula. These large wasps are bright metallic blue-black in color with red wings. They are generally quite harmless to humans because they seldom sting. They can be provoked though and should be left alone.