Patriarchate-nesting
Guides
Trypoxylon clavatum
square-headed wasp
Trypoxylon clavatum is a species of square-headed wasp in the family Crabronidae, found in North America. It belongs to the subgenus Trypargilum, which includes medium-sized and larger species in this genus. The species has two recognized subspecies: T. c. clavatum and T. c. johannis. Like other Trypoxylon species, it is a solitary spider-hunting wasp that nests in pre-existing cavities.