134 PISCATORIAL ENTOMOLOGY. 



altogether. In the warmest hours of a September 

 day, myriads of them are to be seen fluttering in 

 clouds in the shade of trees, bridges, etc. They are of a 

 dingy brown shade on the body, legs, and wings, and 

 unless seen in a certain light are almost indistinguish- 

 able when in action over the water. There are two 

 sizes of these flies when full grown, the largest being 

 fully half an inch in length, the other about two- 

 thirds that size. This is one of the best of our 

 grayling flies. The fish being partial to small insects, 

 the lesser one is generally used by most fishermen. 

 This fly frequents some streams in lieu of the 

 Willow, and is equally killing. Needle flies are 

 numerous on warm mizzly days, throughout the fall 

 of the year. 



The Yellow Sally concludes the list of the Perlidea 

 order deserving the notice of the angler. This fly is 

 of a general primrose tint, and when once seen can 

 never be mistaken. It rises about the middle of June, 

 being more or less numerous during the hot months, 

 but is not much appreciated by the fish. It is seldom 

 really on the water, even when well out, being a stray 

 flier, often descending from a great height to deposit 

 eggs in the water, falling apparently lifeless, but 

 immediately springing up to soar anew, and repeat 

 the operation. The artificials of this fly fail to be 

 effective, owing to their being dressed " winged;" 

 most flat-winged water flies should be dressed "buzz" 

 to kill well. The best chance of killing with this fly 

 is during or soon after a passing storm, which beats 

 them down upon the water. 



