Epirhyssa mexicana Cresson, 1873:394, ♀. ♀, Orizaba; Cordova. - Cameron, 1883-1888Cameron, P. 1883-1888. Biologia Centrali-Americana - Insecta. Hymenoptera. (Families Tenthredinidae-Chrysididae). Taylor and Francis, Red Lion Court, Fleet Street. 487 pp., 20 pl. (distribution), 262 (listed); 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); Morley, 1913Morley, C. 1913. A revision of the Ichneumonidae based on the collection in the British Museum (Natural History) with descriptions of new genera and species. Part II: Tribes Rhyssides, Echtrhomorphides, Anomalides and Paniscides. British Museum, London, England. 1-140. (distribution); Maes, 1999 1999. Catalogo de los insectos y artropodos terrestres de Nicaragua. Volumen III. León, Nicaragua. 1170-1898. (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); 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); 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., 2010Ruíz-Cancino, E., A.I. Khalaim, J.M. Coronado-Blanco, A.E. Humala, A.R. Rodríguez-Berrío & K. Sääksjärvi 2010. Ichneumonidae (Hymenoptera) de localidades de Santiago, Nuevo León, México. Entomología mexicana 9:912-915. (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); Khalaim et al., 2021Khalaim, A.I., E. Ruíz-Cancino & J.M. Coronado-Blanco 2021. Darwin wasps of Mexico (Hymenoptera: Ichneumonidae): the subfamily Rhyssinae. Russian Entomological Journal 30 (3):305-313. (distribution). - As Megarhyssa mexicana: - Merrill, 1815Merrill, J.H. 1815. On some genera of the pimpline ichneumonidae. Transactions of the American Entomological Society 91:109-154.:131 (listed).
Paniscus immaculatus Morley, 1913:109, ♀. 4 ♀♀, United States (British Museum). - Cushman, 1924Cushman, R.A. 1924. On the genera or the Ichneumon-flies of the Tribe Panisini Ashmead, with descriptions and discussion of related genera and species. Proceedings of the United States National Museum 64 (2510):1-48. (distribution). - As Epirhyssa mexicana immaculata: - Maes, 1999 1999. Catalogo de los insectos y artropodos terrestres de Nicaragua. Volumen III. León, Nicaragua. 1170-1898.:1630 ( listed as synonym of Epirhyssa mexicana Cresson, 1873); Khalaim et al., 2021Khalaim, A.I., E. Ruíz-Cancino & J.M. Coronado-Blanco 2021. Darwin wasps of Mexico (Hymenoptera: Ichneumonidae): the subfamily Rhyssinae. Russian Entomological Journal 30 (3):305-313.:309 ( listed as synonym of Epirhyssa mexicana Cresson, 1873).
Epirhyssa dietrichi Townes, in Townes & Tonwes, 1960 - Maes, 1999 1999. Catalogo de los insectos y artropodos terrestres de Nicaragua. Volumen III. León, Nicaragua. 1170-1898.:1630 ( listed as synonym of Epirhyssa mexicana Cresson, 1873); Khalaim et al., 2021Khalaim, A.I., E. Ruíz-Cancino & J.M. Coronado-Blanco 2021. Darwin wasps of Mexico (Hymenoptera: Ichneumonidae): the subfamily Rhyssinae. Russian Entomological Journal 30 (3):305-313.:309 ( listed as synonym of Epirhyssa mexicana Cresson, 1873).