1. Fossil Diptera from Florissant, Colorado;Cockerell;Bull. Am. Museum Nat. Hist.,1909
2. Description of Tertiary insects. Part 5;Cockerell;Am. J. Sci.,1909
3. Fossil insects from Florissant, Colorado;Cockerell;Bull. Am. Museum Nat. Hist.,1911
4. New and little-known insects from the Miocene of Florissant;Cockerell;Colorado J. Geol.,1914
5. The fossil and recent Bombyliidae compared;Cockerell;Bull. Am. Museum Nat. Hist.,1914