Diadegma crassulum is a wasp first described by Walley in 1967. No subspecies are listed.Walley, G.S. (1967) Nearctic species of the Diadegma stenosomus complex (Hymenoptera: Ichneumonidae)., Canadian Entomologist. 99:925-943.Taxapad Ichneumonoidea. Yu D.S.K., 2009-05-04

References