BioStor
 | Additional List of Insects Taken in Alpine Region of Mt. Washington. Annie Slosson (1900) Entomological News, Philadelphia 11: 319-323 |
 | 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 |