Plenoculus davisiPlenoculus davisi is a species of square-headed wasp in the family Crabronidae. It is found in North America.SubspeciesThese five subspecies belong to the species Plenoculus davisi:Plenoculus davisi atlanticus Viereck, 1902Plenoculus davisi davisi W. Fox, 1893Plenoculus davisi gracilis F. Williams, 1960Plenoculus davisi mojavensis F. Williams, 1960Plenoculus davisi transversus F. Williams, 1960