Bassus sycophanta Walsh MS - Cresson, 1868Cresson, E.T. 1868. A list of Ichneumonidae of North America, with descriptions of new species. Part II. Transactions of the American Entomological Society 2:89-114.:112 ( listed as synonym of Bassus sycophanta Cresson, 1868).
Ichneumon laetatorius Fabricius, 1781:424, sex not indicated.Germania (leg. de Hattorf). - As Bassus laetatorius: - Viereck, 1905Viereck, H.L. 1905. Notes and descriptions of Hymenoptera from the Western United States, in the collection of the University of Kansas. Transactions of the Annual Meetings of the Kansas Academy of Science 19:264-326. (distribution). - As Diplazon laetatorius: - Carrasco, 1972Carrasco, F. 1972. Catálogo de la familia Ichneumonidae Peruanos. Revista Peruana de Entomología 15 (2):324-332. (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. (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); Borges et al., 2005Borges, P.A.V., K. van Achterberg, R.R. Askew, K. Zwakhals, O. Oliveira & A.M.C. Santos 2005. Hymenoptera. In: (Ed.). A list of the terrestrial fauna (Mollusca and Arthropoda) and flora (Bryophyta, Pteridophyta and Spermatophyta) from the Azores. 218-221. (distribution); Rodríguez-Berrío et al., 2009Rodríguez-Berrío, A. S. Bordera & I. Sääksjärvi 2009. Checklist of Peruvian Ichneumonidae (Insecta, Hymenoptera). Zootaxa 2303:1-4. (distribution); Ruíz-Cancino, 2010Ruíz-Cancino E. 2010. Ichneumonidae (Hymenoptera) de Tamaulipas, México. Editorial Planea, México. 185 pp. (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., 2012Ruíz-Cancino, E., J.M. Coronado-Blanco, A.I. Khalaim, D.R. Kasparyan, A.M. Corona López & E.T. Sánchez 2012. Ichneumonidae (Hym.) de algunos estados del centro de México. Entomología mexicana 11 (2):1039-1044. (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).
Ichneumon dichrous Schrank, 1781:424 - 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.:723 ( listed as synonym of Diplazon laetatorius (Fabricius, 1781)); Rodríguez-Berrío et al., 2009Rodríguez-Berrío, A. S. Bordera & I. Sääksjärvi 2009. Checklist of Peruvian Ichneumonidae (Insecta, Hymenoptera). Zootaxa 2303:1-4.:16 ( listed as synonym of Diplazon laetatorius (Fabricius, 1781)).
Anomalon attractus Say, 1826:241 - 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.:723 ( listed as synonym of Diplazon laetatorius (Fabricius, 1781)); Rodríguez-Berrío et al., 2009Rodríguez-Berrío, A. S. Bordera & I. Sääksjärvi 2009. Checklist of Peruvian Ichneumonidae (Insecta, Hymenoptera). Zootaxa 2303:1-4.:16 ( listed as synonym of Diplazon laetatorius (Fabricius, 1781)). - As Anomalon attractum: - 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).
Bassus albovarius Wollaston, 1858:23 - 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.:723 ( listed as synonym of Diplazon laetatorius (Fabricius, 1781)); Rodríguez-Berrío et al., 2009Rodríguez-Berrío, A. S. Bordera & I. Sääksjärvi 2009. Checklist of Peruvian Ichneumonidae (Insecta, Hymenoptera). Zootaxa 2303:1-4.:16 ( listed as synonym of Diplazon laetatorius (Fabricius, 1781)).
Bassus sycophanta Cresson, 1868:112, ♂♀. 30 ♂♀, Conn., N. Y., Penn., Del., Ills.. - Cresson, 1868Cresson, E.T. 1868. A list of Ichneumonidae of North America, with descriptions of new species. Part II. Transactions of the American Entomological Society 2:89-114. (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.:723 ( listed as synonym of Diplazon laetatorius (Fabricius, 1781)); Rodríguez-Berrío et al., 2009Rodríguez-Berrío, A. S. Bordera & I. Sääksjärvi 2009. Checklist of Peruvian Ichneumonidae (Insecta, Hymenoptera). Zootaxa 2303:1-4.:16 ( listed as synonym of Diplazon laetatorius (Fabricius, 1781)).
Bassus cinctipes Holmgren, 1869:409 - 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.:723 ( listed as synonym of Diplazon laetatorius (Fabricius, 1781)); Rodríguez-Berrío et al., 2009Rodríguez-Berrío, A. S. Bordera & I. Sääksjärvi 2009. Checklist of Peruvian Ichneumonidae (Insecta, Hymenoptera). Zootaxa 2303:1-4.:16 ( listed as synonym of Diplazon laetatorius (Fabricius, 1781)).
Bassus tripicticrus Walsh, 1873:85, ♂♀. 1 ♂, 5 ♀♀. - 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.:723 ( listed as synonym of Diplazon laetatorius (Fabricius, 1781)); Rodríguez-Berrío et al., 2009Rodríguez-Berrío, A. S. Bordera & I. Sääksjärvi 2009. Checklist of Peruvian Ichneumonidae (Insecta, Hymenoptera). Zootaxa 2303:1-4.:16 ( listed as synonym of Diplazon laetatorius (Fabricius, 1781)).
Scolobates varipes Smith, 1878:3 - 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.:723 ( listed as synonym of Diplazon laetatorius (Fabricius, 1781)); Rodríguez-Berrío et al., 2009Rodríguez-Berrío, A. S. Bordera & I. Sääksjärvi 2009. Checklist of Peruvian Ichneumonidae (Insecta, Hymenoptera). Zootaxa 2303:1-4.:16 ( listed as synonym of Diplazon laetatorius (Fabricius, 1781)). - As Scolobates variipes: - 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.:723 (emendation). - As Scolobates variipes: - 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.:723 (emendation).
Bassus venustulus Saussure, 1890:pl. 15, figs. 23, 23a - 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.:723 ( listed as synonym of Diplazon laetatorius (Fabricius, 1781)); Rodríguez-Berrío et al., 2009Rodríguez-Berrío, A. S. Bordera & I. Sääksjärvi 2009. Checklist of Peruvian Ichneumonidae (Insecta, Hymenoptera). Zootaxa 2303:1-4.:16 ( listed as synonym of Diplazon laetatorius (Fabricius, 1781)).
Bassus laetatorius terminalis Davis, 1895:19 - 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.:723 ( listed as synonym of Diplazon laetatorius (Fabricius, 1781)). - As Bassus terminalis: - Rodríguez-Berrío et al., 2009Rodríguez-Berrío, A. S. Bordera & I. Sääksjärvi 2009. Checklist of Peruvian Ichneumonidae (Insecta, Hymenoptera). Zootaxa 2303:1-4.:16 ( listed as synonym of Diplazon laetatorius (Fabricius, 1781)).
Bassus balearicus Kriechbaumer, 1895:246 - 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.:723 ( listed as synonym of Diplazon laetatorius (Fabricius, 1781)); Rodríguez-Berrío et al., 2009Rodríguez-Berrío, A. S. Bordera & I. Sääksjärvi 2009. Checklist of Peruvian Ichneumonidae (Insecta, Hymenoptera). Zootaxa 2303:1-4.:16 ( listed as synonym of Diplazon laetatorius (Fabricius, 1781)).
Bassus generosus Cameron, 1898:31 - 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.:723 ( listed as synonym of Diplazon laetatorius (Fabricius, 1781)); Rodríguez-Berrío et al., 2009Rodríguez-Berrío, A. S. Bordera & I. Sääksjärvi 2009. Checklist of Peruvian Ichneumonidae (Insecta, Hymenoptera). Zootaxa 2303:1-4.:16 ( listed as synonym of Diplazon laetatorius (Fabricius, 1781)).
Bassus laetatorius senegalensis Ferriere, 1925:148 - 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.:723 ( listed as synonym of Diplazon laetatorius (Fabricius, 1781)). - As Bassus senegalensis: - Rodríguez-Berrío et al., 2009Rodríguez-Berrío, A. S. Bordera & I. Sääksjärvi 2009. Checklist of Peruvian Ichneumonidae (Insecta, Hymenoptera). Zootaxa 2303:1-4.:16 ( listed as synonym of Diplazon laetatorius (Fabricius, 1781)).
Bassus laetatorius ikiti Cheesman, 1936:182 - 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.:723 ( listed as synonym of Diplazon laetatorius (Fabricius, 1781)). - As Bassus ikiti: - Rodríguez-Berrío et al., 2009Rodríguez-Berrío, A. S. Bordera & I. Sääksjärvi 2009. Checklist of Peruvian Ichneumonidae (Insecta, Hymenoptera). Zootaxa 2303:1-4.:16 ( listed as synonym of Diplazon laetatorius (Fabricius, 1781)).