Insecta - Hymenoptera

Invalid subtaxa: Euhymenoptera, Orussomorpha Newman 1834 [invalid subgroup]

Parent taxon: Unicalcarida according to J. Heraty et al. 2011

Sister taxa: Cephoidea, Cratoenigma, Siricoidea

Subtaxa: Apocrita, Orussoidea

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Ecology: