BioStor
 | List of the Pseudoneuroptera of Illinois contained in the cabinet of the writer.. B D Walsh (1862) Proceedings of the Academy of Natural Sciences of Philadelphia 14: 361-402 |
 | The Odonata of New York State Philip P Calvert (1895) Journal of The New York Entomological Society 3: 39-48 |
 | Additions to the Odonata of New York State Philip P Calvert (1897) Journal of The New York Entomological Society 5: 91-95 |
 | Aquatic insects in the Adirondacks J G Needham and C Betten (1901) Bulletin of the New York State Museum 47: 383-612 |
 | A new species of Gomphus (Odonata) related to G. fraternus E B Williamson (1902) Entomological News 13: 47-49 |
 | Dragonflies of the Mississippi Valley collected during the pearl mussel investigations on the Mississippi River, July and August, 1907 Charles Branch Wilson (1909) Proceedings of The United States National Museum 36: 653-671 |
 | Notes On The Odonata Of Blackhawk County Iowa Usa S Hummel and A C Haman (1975) Entomological News 86: 63-64 |