Diadegma basale is a wasp first described by Horstmann in 1980. No sub-species are listed.Horstmann, K. (1980) Uber die Campopleginae der Makaronesischen Inseln (Hymenoptera, Ichneumonidae)., Spixiana. 3:121-136.Taxapad Ichneumonoidea. Yu D.S.K., 2009-05-04
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