BioStor
 | New or little-known crane-flies from the United States and Canada: Tipulidae, Ptychopteridae, Diptera. Part 3 C P Alexander (1916) Proceedings of the Academy of Natural Sciences of Philadelphia 68: 486-549 |
 | Diptera of the superfamily Tipuloidea found in the District of Columbia C P Alexander and W L Mcatee (1920) Proceedings of the United States National Museum 58: 385-435 |
 | A list of the crane-flies taken in the vicinity of Hazleton, Pennsylvania (Diptera) W G Dietz (1921) Transactions of the American Entomological Society 47: 233-268 |
 | The crane-flies (Tipulidae) of New England; second supplementary list (1927) Occasional Papers of The Boston Society of Natural History 5: 223-231 |