169 



g. A List of the Dragonilies of AVixo^^a Lake. 

 Clarence Hamilton Kennedy. 



The dragoiiflu's in tlu' list below were collected by the writer during 

 the summer of lOOO and by Mr. PI B. Williamson and the writer dnriny 

 the summer of YMM. The writer is especially indebted to Mr. E. B. "Wil- 

 liamson for assistance and encouragement in the work. 



The region indicated in this paper by the term "Winona Lake" includes 

 not only the present body of water of that name but also the lowlands 

 surrounding it, which, together with the present lake-bed once formed 

 the bed of a much more extensive body of Avater. There are thus included 

 the two short tributaries of the present lake. Cherry Creek and Clear 

 Creek, and also alxiut a quarter of a mile of the present outlet down as 

 far as the old glacial dam. This gives a small, well-defined region in 

 which, with the exception of the surroundings att'orded by larger streams, 

 are included nearly all types of dragonfly environment, swamp, meadow, 

 woodland, lake and stream. 



Consequently the number of species foimd is relatively large. The 

 list, if we count Hinnjictnun assimUatnm as a distinct form, now numl)ers 

 forty-flve species. It is fairly complete for the smaller kinds but will 

 probably have several additions yet from among the larger, swift-tiying. 

 rarer species. 



The outlet as far as the old glacial dam should be well worked. Here 

 will proliably be found several stream inhabiting species not at present 

 included in the list. Thorough collecting during May and June might add 

 a species or two not found later in the season. Practically no collecting 

 has been done previous to June 25. 



1. ('iiJitpti'rijx mdcnldtd (Beauvois). 



This species is extremely abundant in the heavy shade along the banks 

 of Cherry Creek during the early and middle summer. In 1!>00, after a 

 fcAV heavy rains al>out the 1st of August their numliers were greatly 

 diminished. 



2. Het:rriii(t aiiieriranfi (Fabricius). 



Common in the old outlet below the first wagon bridge. A male was 

 taken at the mouth of Cherrj' Creek a.l>out the first of August, 1900. 



