FLIES FOR APRIL. 83 



To make it buzz, a lighter dun hackle than is 

 represented in the figure is wound upon the 

 same body. In either case make with primrose 

 silk, and delicately. 



This Yellow Dun changes to a Spinner of 

 rather a lighter and yellower brown than that 

 which the Blue Dun (No. 2) turns to, is very 

 nearly of the same size, and lives nine days. It 

 is to be used on warm evenings. Its imitation 

 may consequently be made of the same materials 

 as that of the Red Spinner (see No. 3), only 

 choosing lighter tints. 



REMARKS. If made as a hackle, prefer a cock's 

 hackle for Grayling, a hen's hackle for Trout ; 

 and rib with unwaxed yellow silk over the body, 

 as above. When made with the feather of a 

 dotterel as a hackle, it is called the " Dotterel 

 Dun," a far-famed fly. 



No. 16. THE IRON BLUE DUN. 



After emerging from its water nympha, this 

 fly remains about two days in the state shown, 

 and then changes to the Jenny Spinner (see No. 

 17). It is one of the smallest flies worth the 

 angler's notice, but not the least useful. The 



G 2 



