The Bradynobaenidae are a family of wasps similar to the Mutillidae. These species are often found in arid regions. Recent classifications (beginning in 2008) remove two of the five constituent genera, both from the New World, to a separate family Chyphotidae, thus restricting true bradynobaenids to the Old World.
^Pilgrim, E.; von Dohlen, C.; Pitts, J. (2008). "Molecular phylogenetics of Vespoidea indicate paraphyly of the superfamily and novel relationships of its component families and subfamilies". Zoologica Scripta. 37 (5): 539–560. doi:10.1111/j.1463-6409.2008.00340.x.