Encyrtus trioziphagus Howard, 1885:14, ♂♀. 2 ♂♂, 4 ♀♀, Department grounds at Washington, bred November 7, 1881 (Dept. Agr. and Coll. C.V. Riley). - 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). - As Psyllaephagus trioziphagus: - 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), 383 (comb. nov.); Krombein et al., 1979Krombein, K.V., P.D. Hurd, D.R. Smith & B.D. Burks 1979. Catalog of Hymenoptera in America North of Mexico. Volume 1. Symphyta and Apocrita (Parasitica). Smithsonian Institution Press, Washington D.C. 1-1198. (distribution); Perez, M.L., 2003Perez, M.L. 2003. A preliminary list of Encyrtidae (Hymenoptera: Chalcioidea) of Cuba, with descriptions of two new species. Journal of Hymenoptera Research 12 (1):125-135. (distribution); López Perez, 2003López Perez, M. 2003. A preliminary list of the Encyrtidae (Hymenoptera: Chalcidoidea) of Cuba, with descriptions of two new species. Journal of Hymenoptera Research 12 (1):125-135. (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); Trjapitzin et al., 2004Trjapitzin, V.A., E. Ruíz Cancino & J.M. Coronado Blanco 2004. Encyrtidae (Hymenoptera). In: Bousquets, J.L., J.J. Morrone, O.Y. Ordóñez & I.V. Fernández (Ed.). Biodiversidad, Taxonomía y Biogeografía de artrópodos de México: Hacia una síntesis de su conocimiento. Volumen IV. 735-742. (distribution); Ruíz-Cancino et al., 2005Ruíz-Cancino, E. D.R. Kasparyan, S.N. Myartseva, V.A. Trjapitzin & J.M. Coronado Blanco 2005. Nuevos taxa de Hymenoptera Parasítica de Tamaulipas y otros estados de la República Mexicana. Biodiversidad Tamaulipeca 1:171-184. (distribution); Trjapitzin et al., 2008Trjapitzin, V.A., S.N. Myartseva, E. Ruíz-Cancino & J.M. Coronado-Blanco 2008. Claves de géneros de Encyrtidae (Hymenoptera: Chalcidoidea) de México y un catálogo de las especies. :1-260. (distribution); Noyes, 2019Noyes, J.S. 2019. Universal Chalcidoidea Database. World Wide Web electronic publication. :. (distribution).