Parasitoidism evolved once, and it is found today across most Apocritan families, though it has been secondarily lost several times. The phylogenetic tree gives a condensed overview of the phylogeny, illustrated with major groups. The sawflies are paraphyletic as the Apocrita evolved inside that group. The tree is not fully resolved.

Cladogram of Apocrita after Peters et al.(2017)

*Suborder Apocrita
**Infraorder Aculeata

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