Mesostenus macer Cresson, 1873:144, ♂♀. ♂, ♀, Cordova (Sumichrast, No. 109); Kasparyan & Ruíz-Cancino, 2003Kasparyan, D.R. & E. Ruíz Cancino 2003. Review of Mexican species of the genus Polycyrtus Spinola, 1840 (Hymenoptera: Ichneumonidae: Cryptini), with a key to the species of North America. Russian Entomological Journal 12 (3):311-327.:324, Lectotype ♀ (Mus. Philadelphia); Kasparyan & Ruíz-Cancino, 2008Kasparyan, D.R. & E. Ruíz Cancino 2008. Cryptini de México (Hymenoptera: Ichneumonidae: Cryptinae) Parte II. Victoría, México. 1-373.:294, Lectotype ♀ (Mus. Filadelfia). - Buysson & Marshall, 1892du Buysson, R. & T.A. Marshall 1892. Voyage de M. E. Simon au Venezuela (Décembre 1887 - Avril 1888). Annales de la Société Entomoloqique de France 61:53-76, pls. 3-4. (distribution). - As Polycyrtus macer: - 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), 237 (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); Cushman, 1931Cushman, R.A. 1931. Notes on Ichneumon-flies of the genus Polycyrtus with descriptions of new species. Proceedings of the United States National Museum 78 (art. 14):1-62. (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); Kasparyan & Ruíz-Cancino, 2003Kasparyan, D.R. & E. Ruíz Cancino 2003. Review of Mexican species of the genus Polycyrtus Spinola, 1840 (Hymenoptera: Ichneumonidae: Cryptini), with a key to the species of North America. Russian Entomological Journal 12 (3):311-327. (distribution); Kasparyan & Ruíz-Cancino, 2008Kasparyan, D.R. & E. Ruíz Cancino 2008. Cryptini de México (Hymenoptera: Ichneumonidae: Cryptinae) Parte II. Victoría, México. 1-373. (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).
Polycyrtus cruciatus Cameron, 1885:232, ♀. ♀, Mexico (leg. Sallé); Kasparyan & Ruíz-Cancino, 2003Kasparyan, D.R. & E. Ruíz Cancino 2003. Review of Mexican species of the genus Polycyrtus Spinola, 1840 (Hymenoptera: Ichneumonidae: Cryptini), with a key to the species of North America. Russian Entomological Journal 12 (3):311-327.:324, Type ♀ (Mus. London); Kasparyan & Ruíz-Cancino, 2008Kasparyan, D.R. & E. Ruíz Cancino 2008. Cryptini de México (Hymenoptera: Ichneumonidae: Cryptinae) Parte II. Victoría, México. 1-373.:293, Type ♀ (Mus. Londres). - 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.:232 (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); Kasparyan & Ruíz-Cancino, 2003Kasparyan, D.R. & E. Ruíz Cancino 2003. Review of Mexican species of the genus Polycyrtus Spinola, 1840 (Hymenoptera: Ichneumonidae: Cryptini), with a key to the species of North America. Russian Entomological Journal 12 (3):311-327.:324 ( listed as synonym of Polycyrtus macer (Cresson, 1873)); Kasparyan & Ruíz-Cancino, 2008Kasparyan, D.R. & E. Ruíz Cancino 2008. Cryptini de México (Hymenoptera: Ichneumonidae: Cryptinae) Parte II. Victoría, México. 1-373.:293 ( listed as synonym of Polycyrtus macer (Cresson, 1873)).