32S 
IOWA ACADEMY OF SCIENCE Vol. XXIV, 1917 
is an education in itself just to' watch these insects go through 
their countless performances. 
Collections were made by the writer in four vicinities, 
namely, that area within a radius of three miles of Iowa State 
College at Ames, along the Des Moines River at Boone, on the 
Mississippi in the vicinity of Muscatine, and near the ponds of 
the United States Biological Station at Fairport. The latter 
is an ideal place for Odonata; especially do we find here those 
which inhabit sluggish streams, this doubtless being because the 
ponds are nearly stagnant. A few hundred feet away is the 
river, and here may be found Gomphus, Enallgama, E picordelia 
and scores of others. 
Near by in the fields Sympetium may be found. On damp 
days, early mornings and late afternoons, many species are to 
be found in the tall grass neighboring the ponds. Dr. C. B. 
Wilson of State Normal School, Westfield, Massachusetts, has 
made extensive collections in this vicinity, and these are men- 
tioned in this paper. 
Recorded collections have been made in Iowa by the follow- 
ing individuals: Dr. C. B. Wilson. Fairport, Iowa ; Newton 
Miller, Waterloo, Iowa; Morton J. Elrod, Des Moines, Iowa; 
A. D. Whedon, from northern Iowa. Publications recorded are 
“Some Notes on the Dragonflies of Waterloo, Iowa,” by New- 
ton Miller, Entomological News, December, 1906; “Iowa Odon- 
ata,” by M. J. Elrod, Entomological News, January, 1898; 
“Preliminary Notes on the Odonata of Southern Minnesota,” 
by A. D. Whedon, 15th Report State Entomologist of Minne- 
sota, 1914. (Herein are contained several records of Odonata 
collected by Miss Alda M. Sharp of Gladbrook, Iowa.) 
The natural arrangement followed in this paper is that given 
by E. B. Williamson, in his “Dragonflies of Indiana.” 
Unless it is otherwise mentioned all observations were made 
by the writer. Specimens taken by him are in the college col- 
lection at Iowa State College. The following is a list of the 
species that have been reported from Iowa. 
CALOPTERYX Leach. 
C. mandat a Beauvois. Ames, July 11, 1916; Boone, July 20, 
1916; Muscatine; Fairport, August, 1915 (Wilson) ; Des Moines, 
July, 1893 (Elrod) ; Waterloo, 1906 (Miller) ; Tama county, 
