1915] 
Muttkowski and Whedon: Gomphus Cornutus 
101 
Tough, James 1900 A new Species of Gomphus. Occasional Mem. 
Chicago Ent. Soc., 1, pp. 17-18. 
Walker, E. M. 1904 The Nymph of Gomphus furcifer, Hagen. Can. 
Ent., 36, pp. 358-359. 
j 1908 The Dragonflies (Odonata) of the Ottawa District. Otta- 
wa Naturalist, 22, pp. 49-64. 
Whedon, A. D. 1914 Preliminary Notes on the Odonata of Southern 
Minnesota. In Minnesota State Entomologist’s Report for 
1914, pp. 77-103, figs, and plates. 
Williamson, E. B. 1900 Additions to the Indiana list of Dragonflies 
with a few notes. Proc. Ind. Acad., pp. 173-178 (1901). 
1914 Gomphus pallidus and two new Related Species. Ent. 
News., 25, pp. 49-58. 
Zoological Laboratory, 
University of Wisconsin, 
March 1, 1915. 
State Normal School, 
Mankato, Minn. 
