Diadegma consumtor is a wasp first described by Johann Ludwig Christian Gravenhorst in 1829.No subspecies are listed.Aubert, J.F. (1971) Supplement aux Ichneumonides petiolees avec neuf especes nouvelles., Bulletin de la Société Entomologique de Mulhouse. 1971(mai-juin):35-43.Brischke, C.G.A. (1880) Die Ichneumoniden der Provinzen West- und Ost-Preussen., Schriften der Naturforschenden Gesellschaft in Danzig. 4(4):108-210.Gravenhorst, J.L.C. (1829) Ichneumonologia Europaea. Pars III., Vratislaviae. 1097 pp.Taxapad Ichneumonoidea. Yu D.S.K., 2009-05-04
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