Life … Animals Arthropods Insects Hymenopterans Square-headed Wasps, Sand Wasps, and Allies Trypoxylon Trypoxylon clavatum species 5 observations Trypoxylon clavatum Trypoxylon clavatum Field notes Supported by All 3 native plantssupport it in the US Nectar plants Plants whose flowers it visits Aniseroot, Water Parsnip, Smooth Ruellia 3 Close