Limneria fusiformis Provancher, 1874:148 - As Campoplex fusiformis: - 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 Limnerium fusiforme: - Dalla Torre, 1901-1902Dalla Torre, C.G. 1901-1902. Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymicus. — Volumen III: Trigonalidae, Megalyridae, Stephanidae, Ichneumonidae, Agriotypidae, Evaniidae, Pelecinidae. Pars II. Breitkopf & Härtel, Leipzig. VIII + 1141. (distribution), 96 (comb. nov.).
Amorphota ferruginosa Viereck, 1906:220, ♀. Holotype ♀, Galveston, Texas, May (University of Kansas, leg. F.H. Snow). - 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.:628 ( listed as synonym of Campoplex fusiformis (Provancher, 1874)).
Campoplex grossulariflorae Viereck, 1917:263 - 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.:628 ( listed as synonym of Campoplex fusiformis (Provancher, 1874)).
Campoplex maquinnai Viereck, 1917:263 - 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.:628 ( listed as synonym of Campoplex fusiformis (Provancher, 1874)).
Campoplex pentagoetorum Viereck, 1917:263 - 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.:628 ( listed as synonym of Campoplex fusiformis (Provancher, 1874)).
Campoplex hullensis Viereck, 1925:225 (key) - 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.:628 ( listed as synonym of Campoplex fusiformis (Provancher, 1874)).
Campoplex signatus Viereck, 1925:226 (key) - 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.:628 ( listed as synonym of Campoplex fusiformis (Provancher, 1874)).
Neonortonia scaposa Viereck, 1925:179 (key) - 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.:628 ( listed as synonym of Campoplex fusiformis (Provancher, 1874)).
Pseuderipternoides deceptus Viereck, 1925:179 (key) - 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.:628 ( listed as synonym of Campoplex fusiformis (Provancher, 1874)).
Pseuderipternoides neglectus Viereck, 1925:179 (key) - 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.:628 ( listed as synonym of Campoplex fusiformis (Provancher, 1874)).
Pseuderipternoides pulchellus Viereck, 1925:179 (key) - 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.:628 ( listed as synonym of Campoplex fusiformis (Provancher, 1874)).