Trypoxylon frigidum

Trypoxylon frigidum is a species of square-headed wasp in the family Crabronidae. It is found in North America.

Subspecies
These two subspecies belong to the species Trypoxylon frigidum:
 * Trypoxylon frigidum cornutum Gussakovskij, 1932
 * Trypoxylon frigidum frigidum Gussakovskij, 1932