Microplitis maturus Weed, 1888:294, ♂♀. 4 ♂♀, New York and Connecticut (American Entomological Society); Fernández et al., 2020Fernández-Triana, J.L., M.R. Shaw, C. Boudreault, M. Beaudin & G.R. Broad 2020. Annotated and illustrated world checklist of Microgastrinae parasitoid wasps (Hymenoptera, Braconidae). ZooKeys 920:1-1089.:779, Holotype ♂ (ANSP). - Weed, 1888Weed, C.M. 1888. Descriptions of some new or little known Microgasterinae. Trans. Ent. Soc. 15:294-297. (distribution); Dalla Torre, 1898Dalla Torre, C.G. 1898. Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymicus. - IV: Braconidae. Sumptibus Guilelmi Engelmann, VIII + 323. (distribution); Muesebeck, 1922Muesebeck, C.F.W. 1922. A revision of the North American Ichneumon-flies, belonging to the subfamilies Neoneurinae and Microgasterinae. Proceedings of the United States National Museum 61:1-76. (distribution); Maldonado & Navarro, 1967Maldonado, J. & Navarro, C.A. 1967. Additions and corrections to Wolcott's 'Insects of Puerto Rico'. Caribbean Journal of Science 7 (1-2):45-64. (distribution); Alayo, 1973Alayo, P.D. 1973. Catálogo de los Himenopteros de Cuba. Instituto Cubano del libro, La Habana. 1-218. (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); Fernández et al., 2020Fernández-Triana, J.L., M.R. Shaw, C. Boudreault, M. Beaudin & G.R. Broad 2020. Annotated and illustrated world checklist of Microgastrinae parasitoid wasps (Hymenoptera, Braconidae). ZooKeys 920:1-1089. (distribution).
Microplitis cincta Ashmead, 1891:3, ♂. Holotype ♂, Ottawa, Canada (leg. W. Hague Harrnigton). - Muesebeck, 1922Muesebeck, C.F.W. 1922. A revision of the North American Ichneumon-flies, belonging to the subfamilies Neoneurinae and Microgasterinae. Proceedings of the United States National Museum 61:1-76.:72 ( listed as synonym of Microplitis maturus Weed, 1888); 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.:260 ( listed as synonym of Microplitis maturus Weed, 1888); Fernández et al., 2020Fernández-Triana, J.L., M.R. Shaw, C. Boudreault, M. Beaudin & G.R. Broad 2020. Annotated and illustrated world checklist of Microgastrinae parasitoid wasps (Hymenoptera, Braconidae). ZooKeys 920:1-1089.:779 ( listed as synonym of Microplitis maturus Weed, 1888).
Microgaster tuckeri Viereck, 1905:274, ♀. Holotype ♀, Douglas county, Kansas, June (University of Kansas, leg. E. S. Tucker). - Muesebeck, 1922Muesebeck, C.F.W. 1922. A revision of the North American Ichneumon-flies, belonging to the subfamilies Neoneurinae and Microgasterinae. Proceedings of the United States National Museum 61:1-76.:72 ( listed as synonym of Microplitis maturus Weed, 1888); 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.:260 ( listed as synonym of Microplitis maturus Weed, 1888); Fernández et al., 2020Fernández-Triana, J.L., M.R. Shaw, C. Boudreault, M. Beaudin & G.R. Broad 2020. Annotated and illustrated world checklist of Microgastrinae parasitoid wasps (Hymenoptera, Braconidae). ZooKeys 920:1-1089.:779 ( listed as synonym of Microplitis maturus Weed, 1888).