BioStor
 | Papers from the Harriman Alaska Expedition 28. Hymenoptera W H Ashmead (1902) Proceedings of the Washington Academy of Sciences 4: 117-274 |
 | Generic names applied to birds during the years 1901 to 1905, inclusive, with further additions to Waterhouse's "Index Generum Avium" Charles W Richmond (1908) Proceedings of The United States National Museum 35: 583-655 |