Rileya is a genus of parasitoid wasp in the family Eurytomidae.Riley, C.V.; Ashmead, W.H.; Howard, L.O. (1894) Report upon the parasitic Hymenoptera of the island of St. Vincent., JOURBOOK: Journal of the Linnean Society (Zoology) VOLUME: 25 PAGES: 56-254 There are 27 species currently assigned to the genus.

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