Diadegma boreale is a wasp first described by Horstmann in 1980. No subspecies are listed.Horstmann, K. (1980) Neue westpalaarktische Campopleginen-Arten (Hymenoptera, Ichneumonidae)., Mitteilungen Munchener Entomologischen Gesellschaft. 69:117-132.Taxapad Ichneumonoidea. Yu D.S.K., 2009-05-04
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