Life (root) » Animalia (Animals) » Arthropoda (Arthropods) » Hexapoda (Hexapods) » Insecta (Insects) » Pterygota » Hymenoptera (Ants, Bees, Wasps and Sawflies) » Apocrita (Wasps, Bees, and Ants) » Aculeata (Ants, Bees and Stinging Wasps) » Vespoidea (Yellowjackets and Hornets, Paper Wasps; Potter, Mason and Pollen Wasps and allies) » Vespidae (Yellowjackets and Hornets, Paper Wasps; Potter, Mason and Pollen Wasps) » Eumeninae (Potter and Mason Wasps) » Pterocheilus » Megapterocheilus