 | Synopsis of the Diptera Brachycera of New Zealand F W Hutton (1901) Transactions of the New Zealand Institute 33: 1-95 |
 | District of Columbia Diptera: Syrphidae N Banks, C T Greene et al. (1916) Proceedings of The Biological Society of Washington 29: 173-203 |
 | Notes on milkweed insects in New Jersey H Weiss (1921) Journal of the New York Entomological Society 29: 123-145 |
 | Contribution to a monograph of the American Syrphidae from North of Mexico C Howard Curran (1925) Kansas University Science Bulletin 15(1): 7-216 |
 | 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 |
 | Insects visiting bloom of withe-rod Viburnum cassanoides L. in the Orono, Maine area E Miliczky (1979) Entomological News, Philadelphia 90(3): 131-134 |
 | Insects visiting flowers of wild red raspberry in spruce-fir forested areas of eastern Maine R Hansen (1983) Entomological News, Philadelphia 94(4): 147-151 |