Chyphotidae
The Chyphotidae are a family of wasps with wingless females similar to the Mutillidae, differing most visibly in the presence, in females, of a suture separating the pronotum from the mesonotum. These species are found primarily in arid regions in the southwestern United States and adjacent regions in Mexico.
Taxonomy
Recent classifications of Vespoidea sensu lato removed two of the subfamilies formerly placed in the family Bradynobaenidae to a separate family Chyphotidae, thus restricting true bradynobaenids to the Old World, with chyphotids being restricted to the New World.The genera are classified as follows: