62 FLIES FOR MARCH. 



feather of a woodcock's wing wound upon the 

 above body. In Lancashire it is called ". Old 

 Joan," and the body is made rough with claret- 

 coloured German wool. Thus made it kills well 

 in the Derwent. 



No. 2. THE BLUE DUN. 



This fly lives three or four days in the state 

 represented ; then becomes the Red Spinner. It 

 begins to be plentiful in the early part of March, 

 should the weather be mild. When in full season 

 it will be found on the water, chiefly on rather 

 cold windy days. It endeavours to take flight 

 in three or four seconds after emerging from the 

 Pupa. On cold days it seems to have rather 

 more difficulty in rising from the water than in 

 warm weather, and consequently becomes very 

 frequently food for fishes at the moment of its 

 assuming the winged state. 



IMITATION. 



BODY. Fur of a hare's ear or face, spun very 

 thinly on fine yellow silk, and wound on thickest 



