Masarine-wasp
Guides
Pseudomasaris macswaini
pollen wasp
Pseudomasaris macswaini is a species of pollen wasp in the family Vespidae, subfamily Masarinae. It is one of 14 species in the genus Pseudomasaris, which is the only genus of pollen wasps occurring in North America. Like other masarine wasps, it is solitary and provisions its nest cells with pollen and nectar rather than paralyzed prey. The species was described by Bohart in 1963 and is known from western North America.