BioStor
 | Type species of the genera of ichneumon flies H L Viereck (1914) Bulletin of the United States National Museum 83: 1-186 |
 | 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 |
 | The phylogeny, classification and evolution of parasitic wasps of the subfamily Ophioninae (Ichneumonidae) Ian D Gauld (1985) Bulletin of the British Museum (Natural History) Entomology 51(2): 61-185 |