 | Synopsis of Nearctic Ichneumoninae Stenopneusticae with Reference to the Northeastern Region (Hymenoptera). Part I. Introduction, Key to Nearctic Genera of Ichneumoninae Stenopneusticae, and Synopsis of the Protichneumonini North of Mexico | Monograph |
 | Synopsis of Nearctic Ichneumoninae Stenopneusticae with Reference to the Northeastern Region (Hymenoptera). Part II: Synopsis of the Ichneumonini: Genera Orgichneumon, Cratichneumon, Homotherus, Aculichneumon, Spilichneumon. | Monograph |
 | Synopsis of Nearctic Ichneumoninae Stenopneusticae with Reference to the Northeastern Region (Hymenoptera). Part III. Synopsis of the Ichneumonini: Genera Ichneumon and Thyrateles | Monograph |
 | Synopsis of Nearctic Ichneumoninae Stenopneusticae with Reference to the Northeastern Region (Hymenoptera). Part IV: Synopsis of the Ichneumonini: Genera Chasmias, Neamblymorpha, Anisopygus, Limerodops, Eupalamus, Tricholabus, Pseudamblyteles, Eutanyacra, Ctenichneumon, Exephanes, Ectopimorpha, Pseudoamblyteles | Monograph |
