BioStor
 | Classification of the Ichneumon flies, or the superfamily Ichneumonoidea Willam H Ashmead (1900) Proceedings of the U.S. National Museum 23(1206): 1-220 |
 | Papers from the Harriman Alaska Expedition 28. Hymenoptera W H Ashmead (1902) Proceedings of the Washington Academy of Sciences 4: 117-274 |
 | The genotypes of some of Ashmead's genera of Ichneumon-flies R A Cushman (1942) Proceedings of the United States National Museum 92: 277-289 |
 | 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 |