Tiphioidea

The Sierolomorphidae are a family of 13 extant species of wasps, in the genera Sierolomorpha and Proscleroderma, mostly found in the Northern Hemisphere. They are rare and very little is known of their biology. A fossil species Loreisomorpha nascimbenei has also been placed in the family.

The Bradynobaenidae are a family of wasps similar to the Mutillidae, differing most visibly in the presence, in females, of a suture separating the pronotum from the mesonotum. These species are often found in arid regions.