AQUATIC INSECTS IN NEW YORK STATE 



205 



ill large mimbers. Most of the trout I saw taken from it in 

 1900 were rather lean, though otherwise in good and healthy 

 condition, and suggested that possibly it was becoming over- 

 stocked. 



Of the 27 stomachs obtained, one w^as empty, and the con- 

 tents of another were lost through the breaking of a bottle, 

 leaving 25 for study. I give below in tabular form a bare state- 

 ment of what these 25 had eaten, and follow it with an account 

 of what has been learned elsewhere of the biology of the insects 

 constituting their food. 



Table showing the stomach contents of 25 brook trout from Bone pond 



«A few brook trout scales. 



6 One little fresh-water mussel. 



cAntenna of adult S chirouomid of small size. 



dCarabid beetle claw. 



eScolytid beetle elytron and two little adult Cbironomids. 



/"Achorutes sp.? (Order Tbysauura). 



£7 Three little adult Cbironomids. 



