Cynips q. formosa Bassett, 1864:679, Weld, 1922Weld, L.H. 1922. Notes on cynipid wasps, with descriptions of new North American species. Proceedings of the United States National Museum 61 (18):1-29.:15, Type (United States National Museum). - As Andricus formosus: - Dalla Torre, 1893Dalla Torre, C.G. 1893. Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymicus, Volumen II: Cynipidae. Breitkopf & Härtel, Leipzig. VIII + 140. (distribution); Weld, 1922Weld, L.H. 1922. Notes on cynipid wasps, with descriptions of new North American species. Proceedings of the United States National Museum 61 (18):1-29. (distribution). - As Andricus quercusformosus: - 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). - As Cynips formosa:
Cynips q. capsuala Ashmead, 1885:ix, ♀. 7 ♀♀, Florida; Weld, 1922Weld, L.H. 1922. Notes on cynipid wasps, with descriptions of new North American species. Proceedings of the United States National Museum 61 (18):1-29.:15, 2 Types (United States National Museum). - As Andricus capsualus: - Dalla Torre, 1893Dalla Torre, C.G. 1893. Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymicus, Volumen II: Cynipidae. Breitkopf & Härtel, Leipzig. VIII + 140. (distribution). - As Cynips capsuala: - Weld, 1922Weld, L.H. 1922. Notes on cynipid wasps, with descriptions of new North American species. Proceedings of the United States National Museum 61 (18):1-29.:15 ( listed as synonym of Andricus formosus (Bassett, 1864)). - As Cynips quercus capsualus: