1966] 
Creighton — Pheidole 
7 
Literature Cited 
1. Wheeler, W. M., Proc. New Eng. Zool. Club, 6: 29-35 (1916). 
2. Creighton, W. S. & Creighton, M. P., Psyche, 66 : 1-12 (1959). 
3. Wheeler, W. M., Bull. Amer. Mus. Nat. Hist. 24: 399-485 (1908). 
4. Creighton, W. S. & Gregg, R. E. Univ. Colo. Studies, 3: 1-46 (1955). 
5. Creighton, W. S., Psyche, 71: 169-173 (1964). 
6. Van Pelt, A., Amer. Mid. Natural., 59: 1-57 (1958). 
