''Aphelinus'' is a genus of

parasitoid In evolutionary ecology, a parasitoid is an organism that lives in close association with its host (biology), host at the host's expense, eventually resulting in the death of the host. Parasitoidism is one of six major evolutionarily stable str ...

wasps. Several of the species are important because they parasitize agricultural pests, such as the

soybean aphid The soybean aphid (''Aphis glycines'') is an insect pest of soybean (''Glycine max'') that is exotic to North America. The soybean aphid is native to Asia. It has been described as a common pest of soybeans in China and as an occasional pest ...

('' Aphis glycines'') or the Russian wheat aphid -'' Diuraphis noxia'' - (''A. albipodus'' Hayat & Fatima, ''A. asychis'' Walker, and ''A. varipes'' (Foerster). About 100 species have been described.Universal Chalcidoidea Database
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Partial species list

*'' Aphelinus abdominalis'' Dalman *'' Aphelinus albipodus'' Hayat & Fatima *'' Aphelinus asychis'' Walker *'' Aphelinus certus'' *'' Aphelinus chaonia'' Walker *'' Aphelinus flaviventris'' Kurdjumov *'' Aphelinus humilis'' Mercet *'' Aphelinus lapisligni'' Howard *''

Aphelinus mali ''Aphelinus mali'' is a parasitoid wasp that exploits the woolly apple aphid ('' Eriosoma lanigerum''), a pest of apple trees. It is native to the northeastern United States but has been introduced to other parts of the world as a biological pes ...

'' (Haldeman) *'' Aphelinus semiflavus'' Howard *'' Aphelinus thomsoni'' Graham *''

Aphelinus varipes ''Aphelinus'' is a genus of parasitoid wasps. Several of the species are important because they parasitize agricultural pests, such as the soybean aphid (''Aphis glycines'') or the Russian wheat aphid -''Diuraphis noxia'' - (''A. albipodus'' Haya ...

'' (Foerster)

References

Aphelinidae {{Chalcidoidea-stub