ODONATA OF IOWA 
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S. obtruswm Hagan. Ames, July 11, 1916; Muscatine, August 
1, 1916; Fairport, August 14, 1916; Clinton (Elrod). 
S. vicinum Hagen. Muscatine, August 1, 1916; Fairport, 
July 3, 1916; Des Moines, August, 1893 (Elrod). 
S. corruptum Hagen. Ames (Collection) ; Fairport, August 
3, 1916 ; Fairport (Wilson) • Dunreath, August 4, 1896 (El- 
rod). 
MESOTHEMIS Hagen. 
M. simplicicollis Say. Muscatine, July 29, 1916 ; Fairport, 
August 3, 1916; Ames, July 6, 1916; Fairport (Wilson) ; Water- 
loo, 1906 (Miller) ; Sabula, June, 1897 (Elrod). 
PACHYDIPLAX Brauer. 
P. longipennis Burmeister. Muscatine, July 28, 1916; Fair- 
port, August 17, 1916; Boone, July 20, 1916; Waterloo, 1906 
(Miller); Dunreath, August 4, 1896; Clinton, June, 1897 (El- 
rod). 
LEBELLULA Linne. 
L. basalis Say. Fairport, July 3, 1916 ; Muscatine, August 
4, 1916; Boone, July 20, 1916; Ames (Collection); Waterloo, 
1906 (Miller) ; Des Moines, Clinton (Elrod) ; Fairport (Wilson). 
Found along Mississippi in abundance during July and August. 
L. quadrimaculata Linne. Ames, June 16, 1916 ; Sabula, June, 
1897 (Elrod). 
L. pulchella Drury. Ames, June 16, 1916 ; Boone, July 20, 
1916; Muscatine, August 1, 1916; Fairport, July 28, 1916; 
Waterloo, 1906 (Miller) ; Fairport (Wilson) ; Dunreath, August 
4, 1896 (Elrod) ; Clinton (Elrod) ; Tama county, July 29 (Miss 
Sharp). A very common species, found nearly everywhere in 
the state. 
PLATHEMIS Hagen, 
P. lydia Drury. Fairfax, Iowa (Collection) ; Muscatine, Au- 
gust 7, 1916; Ames, June 15, 1916; Fairport, July 30, 1916; 
Boone, July 14, 1916; Fairport (Wilson) ; Waterloo, 1906 (Mil- 
ler) ; Des Moines (Elrod) ; Tama county, July 29, June 28 
(Miss Sharp). 
Zoology Department, 
Iowa State College. 
