Encyrtus Gargaris Walker, 1843:47, ♂.St. Vincent's Isle (leg. Rev. Lansdown Guilding). - Cresson, 1862Cresson, E.T. 1862. Catalogue of the described species of North American Hymenoptera (Continued from page 211.). Proceedings of the Entomological Society of Philadelphia 1 (8):227-238. (distribution); Howard, 1885Howard, L.O. 1885. Descriptions of North American Chalcididae from the collections of the U. S. Department of Agriculture and of Dr. C. V. Riley. Bulletin of the U. S. Department of Agriculture 5:3-47. (distribution); Dalla Torre, 1898Dalla Torre, C.G. 1898. Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymicus, V. Chalcididae et Proctotrupidae. Sumptibus Guilelmi Engelmann, VII + 598. (distribution); Ashmead, 1900Ashmead, W.H. 1900. Report upon the aculeate Hymenoptera of the islands of St. Vincent and Grenada, with additions to the parasitic Hymenoptera and a list of the described Hymenoptera of the West Indies. Transactions of the Entomological Society of London pt. II:207-367. (distribution). - As Coelopencyrtus gargaris: - De Santis, 1981De Santis, L. 1981. Catalogo de los himenopteros calcidoideos de America al Sur de los Estados Unidos. - Primer suplemento. Revista Peruana de Entomologia 24 (1):1-38. (distribution); Trjapitzin et al., 2004Trjapitzin, V.A., Bennett, F.D., Cancino, E.R. & Coronado Blanco, J.M. 2004. Annotated check-list of Encyrtids (Hymenoptera: Chalcidoidea: Encyrtidae) of Central America, The West Indies and Bermuda. México. 1-205. (distribution); Noyes, 2019Noyes, J.S. 2019. Universal Chalcidoidea Database. World Wide Web electronic publication. :. (distribution). - As Ooencyrtus gargaris: - Ashmead, 1900Ashmead, W.H. 1900. On the genera of the Chalcidid-flies belonging to the subfamily Encyrtidae. Proceedings of the United States National Museum 22:323-412. (distribution).
Encyrtus crassus Howard, 1894:93, ♀. Holotype ♀, St. Vincent; Ashmead, 1900Ashmead, W.H. 1900. On the genera of the Chalcidid-flies belonging to the subfamily Encyrtidae. Proceedings of the United States National Museum 22:323-412.:406, Type ♀ (British Museum). - Howard, 1894Howard, L.O. 1894. Report on the Chalcididae of the Subfamilies Chalcidinae, Eucharinae, Perilampinae, Encyrtinae, Aphelininae, Pireninae, Elasminae, and Elachistinae. Journal of the Linnean Society of London (Zoology) 25:79-108. (distribution); Dalla Torre, 1898Dalla Torre, C.G. 1898. Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymicus, V. Chalcididae et Proctotrupidae. Sumptibus Guilelmi Engelmann, VII + 598. (distribution); Ashmead, 1900Ashmead, W.H. 1900. Report upon the aculeate Hymenoptera of the islands of St. Vincent and Grenada, with additions to the parasitic Hymenoptera and a list of the described Hymenoptera of the West Indies. Transactions of the Entomological Society of London pt. II:207-367. (distribution); De Santis, 1981De Santis, L. 1981. Catalogo de los himenopteros calcidoideos de America al Sur de los Estados Unidos. - Primer suplemento. Revista Peruana de Entomologia 24 (1):1-38.:18 ( listed as synonym of Coelopencyrtus gargaris (Walker, 1843)). - As Zarhopalus crassus:
Giraultella lopesi Costa Lima & Ferreira, 1963:431 - De Santis, 1981De Santis, L. 1981. Catalogo de los himenopteros calcidoideos de America al Sur de los Estados Unidos. - Primer suplemento. Revista Peruana de Entomologia 24 (1):1-38.:18 ( listed as synonym of Coelopencyrtus gargaris (Walker, 1843)).