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| Notes on milkweed insects in New Jersey H Weiss (1921) Journal of the New York Entomological Society 29: 123-145 | |
| A revision of the chalcid flies of the genus Perilampus Latreille occurring in America north of Mexico M T Smulyan (1936) Proceedings of the United States National Museum 83: 369-412 | |
| The Nearctic species of parasitic flies belonging to Zenillia and allied genera (1943) Proceedings of the United States National Museum 93: 1-108 | |
| 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 |