Ichneumon honestus Cresson, 1867:310, ♂. Holotype ♂, West Virginia (leg. Jas. Ridings); Heinrich, 1962Heinrich, G.H. 1962. Synopsis of Nearctic Ichneumoninae Stenopneusticae with particular reference to the northeastern region (Hymenoptera). Part V Synopsis of the Ichneumonini: Genera Protopelmus, Patrocloides, Probolus, Stenichneumon, Aoplus, Limonethe, Hybophorellus, Rubicundiella, Melanichneumon, Stenobarichneumon, Plalylabops, Hoplismenus, Hemihoplis, Trogomorpha. The Canadian Entomologist 93 (Supplement 26):507-671.:592, Holotype ♂ (A.N.S.); Heinrich, 1977Heinrich, G.H. 1977. Ichneumoninae of Florida and neighboring states (Hymenoptera: Ichneumonidae, subfamily Ichneumoninae). Arthropods of Florida and neighboring land areas 9:1-350.:244, Holotype ♂ (ANS). - 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). - As Melanichneumon honestus: - Heinrich, 1962Heinrich, G.H. 1962. Synopsis of Nearctic Ichneumoninae Stenopneusticae with particular reference to the northeastern region (Hymenoptera). Part V Synopsis of the Ichneumonini: Genera Protopelmus, Patrocloides, Probolus, Stenichneumon, Aoplus, Limonethe, Hybophorellus, Rubicundiella, Melanichneumon, Stenobarichneumon, Plalylabops, Hoplismenus, Hemihoplis, Trogomorpha. The Canadian Entomologist 93 (Supplement 26):507-671. (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). - As Melanichneumon honestus honestus: - Heinrich, 1977Heinrich, G.H. 1977. Ichneumoninae of Florida and neighboring states (Hymenoptera: Ichneumonidae, subfamily Ichneumoninae). Arthropods of Florida and neighboring land areas 9:1-350. (distribution).
Melanichneumon honestus milleri Heinrich, 1972:204, ♂♀. Holotype ♀, Highlands Hammock, Highlands Co., Florida, U.S.A., 15.-28.X.1969 (Collection Gerd Heinrich II); Heinrich, 1977Heinrich, G.H. 1977. Ichneumoninae of Florida and neighboring states (Hymenoptera: Ichneumonidae, subfamily Ichneumoninae). Arthropods of Florida and neighboring land areas 9:1-350.:246, Holotype ♀ (CGH II). Synonymized with Melanichneumon honestus (Cresson, 1867) by 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.:499. - Heinrich, 1972Heinrich, G.H. 1972. Synopsis of Nearctic Ichneumonidae Steopneusticae with particular reference to the northeastern region (Hymenoptera). Supplement 3. Naturaliste Canadien 99:173-211. (distribution).