Ichneumon spinator Fabricius, 1798:224, sex not indicated.Cap. Bon spei (leg. Daldorff). - As Pristomerus spinator: - 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); Molina-Ochoa et al., 2001Molina-Ochoa, J., J.J. Hamm, R. Lezama-Gutiérrez, M. López-Edwards, M. González-Ramírez & A. Pescador-Rubio 2001. A survey of fall armyworm (Lepidoptera: Noctuidae) parasitoids in the Mexican States of Michoacán, Colima, Jalisco, and Tamaulipas. The Florida Entomologist 84 (1):31-36. (distribution); Ruíz-Cancino et al., 2002Ruíz Cancino, E., J.M. Coronado-Blanco & J.A. Martínez Ramírez 2002. Contribución al conocimiento de Ichneumonidae (Hymenoptera) del sureste de México. Universidad Autónoma de Tamaulipas, Cd. Victoria, Tamaulipas, México. 1-119.:102 ( listed as synonym of Pristomerus pacificus Cresson, 1879); Ruíz-Cancino & Coronado-Blanco, 2002Ruíz-Cancino, E. & J.M. Coronado-Blanco 2002. Artrópodos terrestres de los estados de Tamaulipas y Nuevo León, México. Serie Publicaciones Cientificas No. 4:1-376. (distribution); Molina-Ochoa et al., 2003Molina-Ochoa, J., J.E. Carpenter, E.A. Heinrichs & J.E. Foster 2003. Parasitoids and Parasites of Spodoptera frugiperda (Lepidoptera: Noctuidae) in the Americas and Caribbean Basin: An Inventory. The Florida Entomologist 86 (3):254-289. (distribution); Kasparyan & Ruíz-Cancino, 2004Kasparyan, D.R. & E. Ruíz-Cancino 2004. Adenda a Ichneumonidae (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. 721-723. (distribution); Ruíz-Cancino et al., 2010Ruíz-Cancino, E., D.R. Kasparyan, J.M. Coronado-Blanco, S.N. Myartseva, V.A. Trjapitzin, S.G. Hernández Aguilar & J. García Jiménez 2010. Himenópteros de la Reserva “El Cielo”, Tamaulipas, México. Dugesiana 17 (1):53-71. (distribution); Ruíz-Cancino et al., 2011Ruíz-Cancino, E., V.H. Toledo Hernández, A.M. Corona López, J.M. Coronado-Blanco, A.I. Khalaim & E. Tovar Sánchez 2011. Ichneumonidae (Hymenoptera) en selvas y bosques del Estado de Morelos, México. In: Equihua Martínez A., E. Estrada Venegas, J.A. Acuña Sota & M.P. Cháirez Grijalva (Ed.). Memoria del XV Simposio Nacional de Parasitología Forestal - 18 al 20 de Noviembre del 2009. 95-100. (distribution); González-Moreno & Bordera, 2012González-Moreno, A. & S. Bordera 2012. The Ichneumonidae (Hymenoptera: Ichneumonoidea) of Ría Lagartos Biosphere Reserve, Yucatán, Mexico. Zootaxa 3230:1-51. (distribution); Ruíz-Cancino et al., 2013Ruíz-Cancino, E., J.M. Coronado-Blanco, J. Cambero-Campos & A.I. Khalaim 2013. Conocimiento actual de los Ichneumonidae (Hymenoptera) de los estados de Nayarit y Sinaloa, México. Entomología mexicana 12 (2):1420-1425. (distribution); Sánchez-García et al., 2015Sánchez-García, J.A., R.Jarquín-López, L. Martínez-Martínez, J.M. Coronado-Blanco & E. Ruíz-Cancino 2015. Ichneumonoidea (Hymenoptera) del estado de Oaxaca, México. Entomología mexicana 2:823-829. (distribution); González et al., 2015González, A., J.M. Coronado, F. Garcia, S.N. Myartseva, V. Ávila, E. Ruiz & A. Guzmán 2015. Hymenoptera parasitica de México. In: Arredondo Bernal H.C. & L.A. Rodríguez del Bosque (Ed.). Casos de control biológico en México. 29-63. (distribution); Pérez-Urbina et al., 2018Pérez-Urbina, B.A., J.M. Coronado-Blanco, E. Ruíz-Cancino, C.S. Venegas-Barrera, A. Correa-Sandoval & J.V. Horta-Vega 2018. Community structure of Ichneumonidae (Hymenoptera) in a mangrove area in the coastal zone of Tamaulipas, Mexico. Revista Mexicana de Biodiversidad 89:823-835. (distribution).
Ichneumon femorator Thunberg, 1822:261 - 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.:683 ( listed as synonym of Pristomerus spinator (Fabricius, 1798)); Maes, 1999 1999. Catalogo de los insectos y artropodos terrestres de Nicaragua. Volumen III. León, Nicaragua. 1170-1898.:1640 ( listed as synonym of Pristomerus spinator (Fabricius, 1798)).
Pristomerus pacificus Cresson, 1879:370, ♀.California (leg. H. Edwards). - 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); 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.:683 ( listed as synonym of Pristomerus spinator (Fabricius, 1798)); Maes, 1999 1999. Catalogo de los insectos y artropodos terrestres de Nicaragua. Volumen III. León, Nicaragua. 1170-1898.:1640 ( listed as synonym of Pristomerus spinator (Fabricius, 1798)); Ruíz-Cancino et al., 2002Ruíz Cancino, E., J.M. Coronado-Blanco & J.A. Martínez Ramírez 2002. Contribución al conocimiento de Ichneumonidae (Hymenoptera) del sureste de México. Universidad Autónoma de Tamaulipas, Cd. Victoria, Tamaulipas, México. 1-119. (distribution); Ruíz-Cancino et al., 2002Ruíz-Cancino, E., D.R. Kasparyan & J.M. Coronado Blanco 2002. Ichneumonidae. In: Llorente Bousquets, J. & J.J. Morrone (Ed.). Biodiversidad, taxonomía y biogeografía de artrópodos de México: Hacia una síntesis de su conocimiento, volumen III. 631-646. (distribution).
Pristomerus appalachianus Viereck, 1905:298, ♂♀. Type ♀, Morton county, Kansas, 3200 feet, June, 1902 (University of Kansas, leg. F. H. Snow); Type ♂, Sedgwick county, near Wichita, Kan., September, 1895 (University of Kansas, leg. E. S. Tucker). - Cushman, 1920Cushman, R.A. 1920. North American Ichneumon-flies, new and described, with taxonomic and nomenclatorial notes. Proceedings of the United States National Museum 58:251-292. (distribution); 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.:683 ( listed as synonym of Pristomerus spinator (Fabricius, 1798)); Maes, 1999 1999. Catalogo de los insectos y artropodos terrestres de Nicaragua. Volumen III. León, Nicaragua. 1170-1898.:1640 ( listed as synonym of Pristomerus spinator (Fabricius, 1798)). - As Neopristomerus appalachianus: - Molina-Ochoa et al., 2003Molina-Ochoa, J., J.E. Carpenter, E.A. Heinrichs & J.E. Foster 2003. Parasitoids and Parasites of Spodoptera frugiperda (Lepidoptera: Noctuidae) in the Americas and Caribbean Basin: An Inventory. The Florida Entomologist 86 (3):254-289.:272 ( listed as synonym of Pristomerus spinator (Fabricius, 1798)).
Pristomerus texanus Ashmead, in Sanderson, 1906:36 Nomen nudum.
Pristomerus coloradensis Brues, 1911:23 Synonymized with Pristomerus spinator (Fabricius, 1798) by 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.:683. - Maes, 1999 1999. Catalogo de los insectos y artropodos terrestres de Nicaragua. Volumen III. León, Nicaragua. 1170-1898.:1640 ( listed as synonym of Pristomerus spinator (Fabricius, 1798)).
Pristomerus melleus Cushman, 1920:279, ♂♀. Type, Washington, District of Columbia (U.S.N.M., No. 22865). Synonymized with Pristomerus spinator (Fabricius, 1798) by 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.:683. - Maes, 1999 1999. Catalogo de los insectos y artropodos terrestres de Nicaragua. Volumen III. León, Nicaragua. 1170-1898.:1640 ( listed as synonym of Pristomerus spinator (Fabricius, 1798)).
Pristomerus Bollowi Enderlein, 1921:9, ♂. Holotype ♂, Nordamerika, Newyork (Stettiner Zoologische Museum, leg. Bollow). Synonymized with Pristomerus spinator (Fabricius, 1798) by 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.:683. - Maes, 1999 1999. Catalogo de los insectos y artropodos terrestres de Nicaragua. Volumen III. León, Nicaragua. 1170-1898.:1640 ( listed as synonym of Pristomerus spinator (Fabricius, 1798)).
Neopristomerus woodworthi Viereck, 1921:172, ♂♀. Allotype ♂, San Diego, California, April 29, 1913 (California Academy o Sciences from the University of California, leg. E.P. Van Duzee); Holotype ♀, Berkeley, California, May 20, '07 (California Academy o Sciences from the University of California, No. 33, leg. Prof. C.W. Woodworth). Synonymized with Pristomerus spinator (Fabricius, 1798) by 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.:683. - Maes, 1999 1999. Catalogo de los insectos y artropodos terrestres de Nicaragua. Volumen III. León, Nicaragua. 1170-1898.:1640 ( listed as synonym of Pristomerus spinator (Fabricius, 1798)).