 This subfamily, with this same rank, has been previously grouped with the pollen wasps and treated together as the family "Masaridae".Now, the Euparagiinae are considered an independent subfamily and the sister group of the remainder of the Vespidae.Their wing venation is unique and differs from all other Vespidae; they also characteristically have a single small pale spot at the posterior edge of the mesonotum, and the femora and trochanters of the male front legs are modified in species-specific shapes.