“…In the revision of Bohart and Menke (1976) all of them were included in a single family, Sphecidae, subdivided into 11 subfamilies. More recently, Melo (1999) recommended the recognition of four sphecid families; the Heterogydae, Ampulicidae, Sphecidae sensu stricto, and Crabronidae, which, together with the Apidae sensu lato (including all bee families), represent the Apoidea. He also proposed five subfamilies for the Crabronidae: Astatinae, Bembicinae, Crabroninae, Pemphredoninae, and Philanthinae.…”