308 College of Forestry 
and the result of his studies will be published in a later 
paper. In the percentages the small flies are given provision- 
ally as “chironomid larvae.” The papers by Malloch, 
Needham and Johannsen, listed in the bibliography, contain 
a large amount of information on these insects, so important 
as food for many fishes. 
ORDER COLEOPTERA (Beetles). _ 
The Coleoptera were identified by Mr. W. J. Gerhard. 
Famity Dyriscrpa (Predaceous Diving-beetles). 
Laccophylus maculosus Germ. 
Station XXX, habitat 1. 
Hydrovatus pustulatus Mels. From stomach of Painted 
Terrapin. 
Famity Gyrinip® (Whitligig-beetles). 
Gyrinus ventralis Kirby. 
Very common at station IV. 
Dineutes hornii Roberts. 
Station I. 
Dineutes asstemilis Aube. 
Station IV. 
Gyrinid larve. 
Station XITT. 
Famity Hatirerip2. 
Cnemidotus sp. 
Larva from stomach of Painted Terrapin. 
Faminry Hyproputiips (Water-scavenger Beetles). 
Tropisternus glaber Herbst. 
Stations XVI, common; XXX, habitat 1, common. 
Philhydrus cinctus Say. 
Station XXX, habitat 1, common. 
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