Rohwer-1911
Guides
Pseudomasaris coquilletti
Pseudomasaris coquilletti is a species of pollen wasp in the family Vespidae. It occurs in the western United States, specifically in Oregon, California, Utah, and Arizona. Like other members of the genus Pseudomasaris, adults feed on pollen and nectar rather than other insects.
Pterocheilus diversicolor
Pterocheilus diversicolor is a species of solitary mason wasp in the subfamily Eumeninae, described by Rohwer in 1911. Like other members of the genus Pterocheilus, females are fossorial, excavating burrows in soil or sand using specialized tarsal spines and a psammophore (beard-like setae on the mouthparts) to carry excavated material away from the nest entrance. The species belongs to a genus of approximately 40 North American species with greatest diversity in the southwestern United States. Specific biological details for P. diversicolor remain poorly documented compared to better-studied congeners such as P. quinquefasciatus.