| The North American Ichneumon-flies of the tribes Labenini, Rhyssini, Xoridini, Odontomerini, and Phytodietini. Sievert Rohwer (1921) Proceedings of the United States National Museum, Washington D. C. 57(2317): 405-474 | |
| A catalogue and reclassification of the Nearctic Ichneumonidae (Hymenoptera). Part I Henry K Townes (1944) Memoirs of The American Entomological Society 11(1): 1-477 | |
| A catalogue and reclassification of the Nearctic Ichneumonidae (Hymenoptera). Part II. The subfamilies Mesoleiinae, Plect-iscinae, Orthocentrinae, Diplazoninae, Metopiinae, Ophioninae, Mesochorinae Henry K Townes (1945) Memoirs of The American Entomological Society 11(2): 479-925 | |
| A description and classification of the final instar larvae of Ichneumonidae (Insecta, Hymenoptera) J R T Short (1959) Proceedings of the United States National Museum 110: 391-511 |