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See text. The term parasitic wasp refers to a large evolutionary grade of hymenopteran superfamilies, mainly in the Apocrita. They are primarily parasitoids of other animals, mostly other arthropods. Many of them, such as the family Braconidae, are considered beneficial because they control populations of agricultural pests. Historically, the classification system of Hymenoptera included two divisions or infraorders within the suborder Apocrita one of these, the "Parasitica" containing the parasitic wasps. However, the use of the name Parasitica (or its alternative, "Terebrantia") has been phased out in recent years, as it is a paraphyletic grouping, and most modern classifications explicitly reject the use of any groups that are not monophyletic. Presently, it is not clear what the eventual taxonomic fate of these groups will be. A number of clades seem to stand out in newer studies, and these may be treated as unranked taxa or at the ranks of infraorder and division.
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