Microplitis ceratomiæ Riley, 1881:303, ♂♀. ♂♂♀♀, Missouri, 1880; Janzen et al., 2003Janzen, D.H., A.K. Walker, J.B. Whitfield, G. Delvare, & I.D. Gauld 2003. Host-specificity and hyperparasitoids of three new Costa Rican species of Microplitis Foerster (Hymenoptera: Braconidae: Microastrinae), parasitoids of Sphingid caterpillars. 12:42-76.:54, Type, examined (U. S. National Museum, Washington, D.C.); 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.:754, Syntypes ♀ and ♂, examined (USNM). - Cockerell, 1899Cockerell, T.D.A. 1899. A first list of the hymenopterous families Tenthredinidae, Siricidae, Chrysididae, Proctotrypidae, Cynipidae, Chalcididae and Braconidae collected in New Mexico. Transactions of the Kansas Academy of Sciences 16:212-216. (distribution); Janzen et al., 2003Janzen, D.H., A.K. Walker, J.B. Whitfield, G. Delvare, & I.D. Gauld 2003. Host-specificity and hyperparasitoids of three new Costa Rican species of Microplitis Foerster (Hymenoptera: Braconidae: Microastrinae), parasitoids of Sphingid caterpillars. 12:42-76. (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 ceratomiae actuosus Riley, 1881 - 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.:754 ( listed as synonym of Microplitis ceratomiae Riley, 1881).
Microplitis waldeni Viereck, 1917 Janzen et al., 2003Janzen, D.H., A.K. Walker, J.B. Whitfield, G. Delvare, & I.D. Gauld 2003. Host-specificity and hyperparasitoids of three new Costa Rican species of Microplitis Foerster (Hymenoptera: Braconidae: Microastrinae), parasitoids of Sphingid caterpillars. 12:42-76.:55, Type (Connecticut Agricultural Experiment Station). - Janzen et al., 2003Janzen, D.H., A.K. Walker, J.B. Whitfield, G. Delvare, & I.D. Gauld 2003. Host-specificity and hyperparasitoids of three new Costa Rican species of Microplitis Foerster (Hymenoptera: Braconidae: Microastrinae), parasitoids of Sphingid caterpillars. 12:42-76.:55 ( listed as synonym of Microplitis ceratomiae Riley, 1881); 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.:754 ( listed as synonym of Microplitis ceratomiae Riley, 1881).