159 



g. A List of the Bragonflies of AVinona Lake. 

 Clarence Hajultox Kennedy. 



Tho drniionfiios in the list below wero collected by the writer during 

 the summer of 1900 and by Mr. E. B. Williamson and the writer during 

 the summer of 1JX)1. The writer is especially indebted to Mr. E. B. AYil- 

 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 Avater of that name but also the loAvlands 

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

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

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

 Creek, and also about 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 afforded by larger streams, 

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

 woodland, lake and stream. 



Consequently the number of species found is relatively large. The 

 list, if we count Sympctrvm assimilatum as a distinct form, now numbers 

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

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

 rarer species. 



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

 will probably 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. Caloptcryx mandata (Beauvois). 



This species is exti-emely abundant in the heavy shade along the banks 

 of Cherrj' Creek during the early and middle summer. In 1!>(X), after a 

 few heavy rains about the 1st of August their numbers were greatly 

 diminished. 



2. Hetxrinn amerkana (Fabricius). 



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

 taken at the mouth of Cherry Creek about the first of August, 1900. 



