Hadronotus leptocorisae Howard, 1885:215, Ashmead, 1893Ashmead, W.H. 1893. A monograph of the North American Proctotrypidae. Bulletin of the United States National Museum 45:1-472.:231, Types (National Museum); Masner & Muesebeck, 1968Masner, L. & C.F.W. Muesebeck 1968. The Types of Proctotrupoidea (Hymenoptera) in the United States National Museum. 270:1-143.:36, Lectotype ♀ (USNM, no. 1480), Neotype ♀ (USNM, USNMENT00989859), designated by Talamas et al., 2017Talamas, E.J., J. Thompson, A. Cutler, S. Fitzsimmons Schoenberger, A. Cuminale, T. Jung, N.F. Johnson, A.A. Valerio, A.B. Smith, V. Haltermann, E. Alvarez, C. Schwantes, C. Blewer, C. Bodenreider, A. Salzberg, P. Luo, D. Meislin & M.L. Buffington 2017. An online photographic catalog of primary types of Platygastroidea (Hymenoptera) in the National Museum of Natural History, Smithsonian Institution. Journal of Hymenoptera Research 56:187-224.:199. - Ashmead, 1887Ashmead, W.H. 1887. Studies on the North American Proctotrupidae, with descriptions of new species from Florida. (Part I.). Entomologica Americana 3:73-76, 97-100, 117-119. (distribution); Ashmead, 1893Ashmead, W.H. 1893. A monograph of the North American Proctotrypidae. Bulletin of the United States National Museum 45:1-472. (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). - As Gryon leptocorisae: - 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); Maes, 1999 1999. Catalogo de los insectos y artropodos terrestres de Nicaragua. Volumen III. León, Nicaragua. 1170-1898. (distribution).
Hadronotus hungaricus Szabó, 1966:430 - Talamas et al., 2017Talamas, E.J., J. Thompson, A. Cutler, S. Fitzsimmons Schoenberger, A. Cuminale, T. Jung, N.F. Johnson, A.A. Valerio, A.B. Smith, V. Haltermann, E. Alvarez, C. Schwantes, C. Blewer, C. Bodenreider, A. Salzberg, P. Luo, D. Meislin & M.L. Buffington 2017. An online photographic catalog of primary types of Platygastroidea (Hymenoptera) in the National Museum of Natural History, Smithsonian Institution. Journal of Hymenoptera Research 56:187-224.:199 ( listed as synonym of Gryon leptocorisae (Howard, 1885)).
Gryon reduviophagus Kozlov, 1971:48 - Talamas et al., 2017Talamas, E.J., J. Thompson, A. Cutler, S. Fitzsimmons Schoenberger, A. Cuminale, T. Jung, N.F. Johnson, A.A. Valerio, A.B. Smith, V. Haltermann, E. Alvarez, C. Schwantes, C. Blewer, C. Bodenreider, A. Salzberg, P. Luo, D. Meislin & M.L. Buffington 2017. An online photographic catalog of primary types of Platygastroidea (Hymenoptera) in the National Museum of Natural History, Smithsonian Institution. Journal of Hymenoptera Research 56:187-224.:199 ( listed as synonym of Gryon leptocorisae (Howard, 1885)).