Microgaster calliptera Say, 1836:264,Indiana; 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.:27, Type, has been lost; 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.:914, Type lost. - 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); Muesebeck, 1958Muesebeck, C.F.W. 1958. Family Braconidae. In: Krombein, K.V. (Ed.). Hymenoptera of America North of Mexico - Synoptic Catalog. Washington: U.S. Department of Agriculture. Agriculture Monograph No. 2. First Supplement, 305 pp. 18-36. (distribution). - As Protomicroplitis calliptera: - 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).
Microgaster maculipennis Cresson, 1872:183 - Dalla Torre, 1898Dalla Torre, C.G. 1898. Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymicus. - IV: Braconidae. Sumptibus Guilelmi Engelmann, VIII + 323. (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.:262 ( listed as synonym of Protomicroplitis calliptera (Say, 1836)); 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.:914 ( listed as synonym of Protomicroplitis calliptera (Say, 1836)).