FLIES FOR APRIL. 69 



No. 15. YELLOW DUN. 



This fly proceeding from a water nympha, lives 

 in the form shewn about three days. It is on 

 the water generally from ten o'clock until three, 

 and is one of our best. 



IMITATION. 



BODY. Yellow mohair, mixed with a little pale 

 blue fur from a mouse. Or yellow 

 silk thread well waxed with cobbler's 

 wax to give it an olive tint. 



WINGS. The lightest part of a feather from a 

 young starling's wing. 



LEGS. A light yellow dun hackle. 



To make it buzz, a lighter dun hackle than is 

 represented in the figure, is wound upon the same 

 body. 



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 choos- 

 ing lighter tints. 



