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By most systematists this family is still classifed with the Scoliidæ, although separated as a distinct family by the Swedish entomologist, C.G. Thomson, as early as 1874. I agree with Thomson, and belive these wasps form a distinct family, easily recognized by the characters made use of in my table of families.The genusEngycistus, Fox based uponMyzine rufiventris, Cresson, was classifed by Cresson, Cameron and Fox with theScoliidæ. Mr. Fox has kindly sent me specimens for examination, male anddoi:10.4039/ent3539-2 fatcat:ehr3ah43n5gp3ilvlcu5t2m5km