AMERICAN TROUT-STREAM INSECTS 



all breed in the water from creepers that are enclosed 

 in artificial cases, ingeniously fashioned around 

 them for self-preservation. Trout consume these 

 creepers while in their cases at the bottom, also 

 while they are rising from the mud to the surface, 

 which they do twice a year. When on land or at 

 the water's surface in repose, they are similar in 

 appearance to moths. They sport on the wing 

 more in the dusk and twilight than in the daytime, 

 and in general they are tender and susceptible to 

 cold. They are more numerous on warm evenings, 

 flying in quick whirls. When they alight they run 

 exceedingly fast. 



Fourth: The class of spinners, the long-legged, 

 slender tribe of insects very alluring to trout. 

 Some are bred on the land and some in the water. 

 They have in general two feelers and a small trunk 

 at the nose; six long, thin legs; and a pair of long, 

 narrow, transparent wings — some slanting upward 

 from the shoulders, others lying horizontally on 

 each other over the back. There are vast varieties 

 of them, from the large gray spinner to the small 

 mosquito. 



Fifth: The house-fly. The flies of this class 



resemble the house-fly in having large heads, thick 



shoulders, a thick body which is about half the 



length of the fly, and a pair of clear, oblong wings 



which lie flat or horizontal and point more or less 



from the body. They are principally bred on land ; 



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