226 FLY-FISHING. 



Imitation. 



Body. Work in a little tuft of green at the tail, 

 and then finish the body of sandy-colored mohair. 



Wings. A light brown mottled hen's feather, to 

 lie flat. 



Legs. A pale ginger hackle. 



The body of the male is yellow, without the green 

 tag. 



No. 13. THE YELLOW DUN. 



This beautiful ephemera is one of our very best 

 flies. There are several varieties, and some of them 

 are an inch in length. It changes to a spinner, very 

 similar to the metamorphosis of the blue dun (No. 2), 

 only lighter and yellower, and should be so tied. 



Imitation. 



JSody. Yellow mohair spun very thinly on pale 

 blue silk. 



Wings. From the lightest part of the feather of 

 a robin's wing. 



Legs. A pale yellow dun hackle. 



This fly must not be finished off at the head with 

 the blue silk, but a yellow must be tied in for the 

 purpose when the body is done. 



No. 14. THE IRON BLUE DUN. 



This is one of the smallest of the ephemeridcB, 

 but not the least useful. It lives only two or three 

 days before changing its coat, when its body becomes 

 almost white, and its wings transparent. 



