CHAPTER VII 



DIPTERA 



THE order Diptera, or two-winged flies, 

 includes more species which at times serve 

 as food for trout and grayling, than any 

 other order which includes species of so- 

 called flies. 



Though naturally many other species 

 than those whose imitations I describe here 

 will be found on the water, I have tried to 

 include those which are most commonly 

 found, without burdening my reader with 

 too many. 



The several patterns of imitations of 

 small Diptera (curses) will, I believe, be 

 found to represent most of the commoner 

 species found on the water, at least suffi- 

 ciently accurately to deceive the trout 

 sometimes, though when the fish are feed- 



