Cynips quercusirregularis Osten Sacken, 1861:65 - As Neuroterus quercusirregularis: - 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); Melika & Abrahamson, 1997Melika, G. & W.G. Abrahamson 1997. Descriptions of four new species of cynipid gall wasps of the genus Neuroterus (Hymenoptera: Cynipidae) with redescriptions of some known species from the eastern United States. Proceedings of the Entomological Society of Washington 99 (3):560-573. (distribution).
Cynips majalis Bassett, 1864:683 Synonymized with Neuroterus quercusirregularis (Osten Sacken, 1861) by Melika & Abrahamson, 1997Melika, G. & W.G. Abrahamson 1997. Descriptions of four new species of cynipid gall wasps of the genus Neuroterus (Hymenoptera: Cynipidae) with redescriptions of some known species from the eastern United States. Proceedings of the Entomological Society of Washington 99 (3):560-573.:569. - As Cynips q. majalis: - As Cynips quercus majalis: - As Neuroterus majalis: - Ashmead, 1887Ashmead, W.H. 1887. On the Cynipidous galls of Florida, with descriptions of new species and Synopses of the described species of North America. Trans. Am. Entomol. Soc. Phil. 14:125-158. (distribution); Dalla Torre, 1893Dalla Torre, C.G. 1893. Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymicus, Volumen II: Cynipidae. Breitkopf & Härtel, Leipzig. VIII + 140. (distribution); Weld, 1926Weld, L.H. 1926. Field notes on gall-inhabiting Cynipid wasps with descriptions of new species. Proceedings of the United States National Museum 68 (10):1-131. (distribution). - As Neuroterus quercusmajalis: - 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).
Cynips irregularis Osten Sacken, 1865:340 - 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.:1074 ( listed as synonym of Neuroterus quercusirregularis (Osten Sacken, 1861)).
Cynips majalis Osten Sacken, 1865:353 - 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.:1074 ( listed as synonym of Neuroterus quercusmajalis (Bassett, 1864)).