Mesostenus ferrumequinum Walsh & Riley, 1869:133, Townes & Townes, 1962Townes, H.K. & M. Townes 1962. Ichneumon-flies of America north of Mexico: 3. Subfamily Gelinae, tribe Mesostenini. Bulletin of the United States National Museum 216 (3):1-602.:465, Type, lost; Santos & Aguiar, 2013Santos, B.F. & A.P. Aguiar 2013. Phylogeny and revision of Messatoporus Cushman (Hymenoptera, Ichneumonidae, Cryptinae), with descriptions of sixty five new species. Zootaxa 3634 (1):1-284.:107, Holotype lost. - 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.:476 ( listed as synonym of Messatoporus discoidalis (Cresson, 1872)); Kasparyan & Ruíz-Cancino, 2005Kasparyan, D.R. & E. Ruíz Cancino 2005. A review of North American species of Messatoporus Cushman (Hymenoptera: Ichneumonidae, Cryptini). Zoosystematica Rossica 14 (1):105-122.:115 ( listed as synonym of Messatoporus jocosus (Provancher, 1874)); Kasparyan & Ruíz-Cancino, 2008Kasparyan, D.R. & E. Ruíz Cancino 2008. Cryptini de México (Hymenoptera: Ichneumonidae: Cryptinae) Parte II. Victoría, México. 1-373.:325 ( listed as synonym of Messatoporus jocosus (Provancher, 1874)); Santos & Aguiar, 2013Santos, B.F. & A.P. Aguiar 2013. Phylogeny and revision of Messatoporus Cushman (Hymenoptera, Ichneumonidae, Cryptinae), with descriptions of sixty five new species. Zootaxa 3634 (1):1-284.:107 ( listed as synonym of Messatoporus discoidalis (Cresson, 1872)). - As Mesostenus ferrum-equinum: - Townes & Townes, 1962Townes, H.K. & M. Townes 1962. Ichneumon-flies of America north of Mexico: 3. Subfamily Gelinae, tribe Mesostenini. Bulletin of the United States National Museum 216 (3):1-602.:465 ( listed as synonym of Mesostenus discoidalis Cresson, 1872).
Mesostenus discoidalis Cresson, 1872:162, ♀. Holotype ♀, Texas (G.W. Belfrage); Townes & Townes, 1962Townes, H.K. & M. Townes 1962. Ichneumon-flies of America north of Mexico: 3. Subfamily Gelinae, tribe Mesostenini. Bulletin of the United States National Museum 216 (3):1-602.:465, Type ♀ (Washington); Townes & Townes, 1962Townes, H.K. & M. Townes 1962. Ichneumon-flies of America north of Mexico: 3. Subfamily Gelinae, tribe Mesostenini. Bulletin of the United States National Museum 216 (3):1-602.:502, Type ♀ (Lawrence); Kasparyan & Ruíz-Cancino, 2005Kasparyan, D.R. & E. Ruíz Cancino 2005. A review of North American species of Messatoporus Cushman (Hymenoptera: Ichneumonidae, Cryptini). Zoosystematica Rossica 14 (1):105-122.:111, Type ♀ (USNM); Kasparyan & Ruíz-Cancino, 2008Kasparyan, D.R. & E. Ruíz Cancino 2008. Cryptini de México (Hymenoptera: Ichneumonidae: Cryptinae) Parte II. Victoría, México. 1-373.:318, Type ♀ (Mus. Washington); Santos & Aguiar, 2013Santos, B.F. & A.P. Aguiar 2013. Phylogeny and revision of Messatoporus Cushman (Hymenoptera, Ichneumonidae, Cryptinae), with descriptions of sixty five new species. Zootaxa 3634 (1):1-284.:107, Holotype ♀ (ULQC, No. 1575). - 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); Townes & Townes, 1962Townes, H.K. & M. Townes 1962. Ichneumon-flies of America north of Mexico: 3. Subfamily Gelinae, tribe Mesostenini. Bulletin of the United States National Museum 216 (3):1-602. (distribution). - As Messatoporus discoidalis: - Cushman, 1929Cushman, R.A. 1929. A revision of the North American Ichneumon-flies of the genus Mesostenus and related genera. Proceedings of the United States National Museum 74 (art. 16):1-58. (distribution), 9 (comb. nov.); 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); Kasparyan & Ruíz-Cancino, 2005Kasparyan, D.R. & E. Ruíz Cancino 2005. A review of North American species of Messatoporus Cushman (Hymenoptera: Ichneumonidae, Cryptini). Zoosystematica Rossica 14 (1):105-122. (distribution), 115 ( listed as synonym of Messatoporus jocosus (Provancher, 1874)); 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, 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., 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); Santos & Aguiar, 2013Santos, B.F. & A.P. Aguiar 2013. Phylogeny and revision of Messatoporus Cushman (Hymenoptera, Ichneumonidae, Cryptinae), with descriptions of sixty five new species. Zootaxa 3634 (1):1-284. (distribution); Rodríguez-Mota et al., 2015Rodríguez-Mota, A.J., E. Ruíz-Cancino, A.I. Khalaim, J.M. Coronado-Blanco & J. Treviño-Carreónj 2015. Diversidad de Ichneumonidae (Hymenoptera) en un bosque de Pinus spp. y Juniperus flaccida en Jaumave, Tamaulipas, México. Revista Mexicana de Biodiversidad 86:972-980. (distribution); Santos & Hoppe, 2018Santos, B.F. & J.P.M. Hoppe 2018. Filling gaps in species distributions through the study of biological collections: 415 new distribution records for Neotropical Cryptinae (Hymenoptera, Ichneumonidae). Revista Brasileira de Entomologia 62 (4):288-291. (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). - As Messatoporus discoidaloides: - 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).
Mesostenus jocosus Provancher, 1874:300, Townes & Townes, 1962Townes, H.K. & M. Townes 1962. Ichneumon-flies of America north of Mexico: 3. Subfamily Gelinae, tribe Mesostenini. Bulletin of the United States National Museum 216 (3):1-602.:465, Type ♀ (Quebec); Santos & Aguiar, 2013Santos, B.F. & A.P. Aguiar 2013. Phylogeny and revision of Messatoporus Cushman (Hymenoptera, Ichneumonidae, Cryptinae), with descriptions of sixty five new species. Zootaxa 3634 (1):1-284.:107, Lectotype ♀ (ULQC, 304). - 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); Townes & Townes, 1962Townes, H.K. & M. Townes 1962. Ichneumon-flies of America north of Mexico: 3. Subfamily Gelinae, tribe Mesostenini. Bulletin of the United States National Museum 216 (3):1-602.:465 ( listed as synonym of Mesostenus discoidalis Cresson, 1872); 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.:476 ( listed as synonym of Messatoporus discoidalis (Cresson, 1872)); Santos & Aguiar, 2013Santos, B.F. & A.P. Aguiar 2013. Phylogeny and revision of Messatoporus Cushman (Hymenoptera, Ichneumonidae, Cryptinae), with descriptions of sixty five new species. Zootaxa 3634 (1):1-284.:107 ( listed as synonym of Messatoporus discoidalis (Cresson, 1872)). - As Messatoporus jocosus: - Kasparyan & Ruíz-Cancino, 2005Kasparyan, D.R. & E. Ruíz Cancino 2005. A review of North American species of Messatoporus Cushman (Hymenoptera: Ichneumonidae, Cryptini). Zoosystematica Rossica 14 (1):105-122. (distribution); Kasparyan & Ruíz-Cancino, 2008Kasparyan, D.R. & E. Ruíz Cancino 2008. Cryptini de México (Hymenoptera: Ichneumonidae: Cryptinae) Parte II. Victoría, México. 1-373. (distribution).
Messatoporus rufiventris Cushman, 1929:11, ♀. Holotype ♀, Cabin John, Md., August 5, 1917 (U.S.N.M., No. 40579, leg. R.M. Fouts); Townes & Townes, 1962Townes, H.K. & M. Townes 1962. Ichneumon-flies of America north of Mexico: 3. Subfamily Gelinae, tribe Mesostenini. Bulletin of the United States National Museum 216 (3):1-602.:463, Type ♀ (Washington); Kasparyan & Ruíz-Cancino, 2005Kasparyan, D.R. & E. Ruíz Cancino 2005. A review of North American species of Messatoporus Cushman (Hymenoptera: Ichneumonidae, Cryptini). Zoosystematica Rossica 14 (1):105-122.:120, Type ♀ (USNM); Kasparyan & Ruíz-Cancino, 2008Kasparyan, D.R. & E. Ruíz Cancino 2008. Cryptini de México (Hymenoptera: Ichneumonidae: Cryptinae) Parte II. Victoría, México. 1-373.:334, Type ♀ (Mus. Washington); Santos & Aguiar, 2013Santos, B.F. & A.P. Aguiar 2013. Phylogeny and revision of Messatoporus Cushman (Hymenoptera, Ichneumonidae, Cryptinae), with descriptions of sixty five new species. Zootaxa 3634 (1):1-284.:107, Holotype ♀ (USNM). Synonymized with Messatoporus discoidalis (Cresson, 1872) by Santos & Aguiar, 2013Santos, B.F. & A.P. Aguiar 2013. Phylogeny and revision of Messatoporus Cushman (Hymenoptera, Ichneumonidae, Cryptinae), with descriptions of sixty five new species. Zootaxa 3634 (1):1-284.:107. - Cushman, 1929Cushman, R.A. 1929. A revision of the North American Ichneumon-flies of the genus Mesostenus and related genera. Proceedings of the United States National Museum 74 (art. 16):1-58. (distribution); Townes & Townes, 1962Townes, H.K. & M. Townes 1962. Ichneumon-flies of America north of Mexico: 3. Subfamily Gelinae, tribe Mesostenini. Bulletin of the United States National Museum 216 (3):1-602. (distribution); Porter, 1975Porter, C.C. 1975. A new floridian Polycyrtidea with comments on Zoogeography of Florida Mesostenini (Hymenoptera: Ichneumonidae). The Florida Entomologist 58 (4):247-255. (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); Kasparyan & Ruíz-Cancino, 2005Kasparyan, D.R. & E. Ruíz Cancino 2005. A review of North American species of Messatoporus Cushman (Hymenoptera: Ichneumonidae, Cryptini). Zoosystematica Rossica 14 (1):105-122. (distribution); Kasparyan & Ruíz-Cancino, 2008Kasparyan, D.R. & E. Ruíz Cancino 2008. Cryptini de México (Hymenoptera: Ichneumonidae: Cryptinae) Parte II. Victoría, México. 1-373. (distribution).