REFINE
Browse All : application/pdf and Animalia | Arthropoda | Insecta | Diptera | Empididae by Cockerell, Theodore D. A. (Theodore Dru Alison), 1866-1948, author and Cockerell, Theodore D. A. (Theodore Dru Alison), 1866-1948, author of Florissant Fossil Beds National Monument (Colo.) from ca. 1908
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