BioStor
 | The ichneumon flies of America belonging to the trihe Ophionini (1912) Transactions of The American Entomological Society Philadelphia 38: 1-176 |
 | Type species of the genera of ichneumon flies H L Viereck (1914) Bulletin of the United States National Museum 83: 1-186 |
 | 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 |