38 OLD FLIES IN NEW DRESSES 



the head pointing towards the right. The 

 wings are then laid flat on the body with 

 the right hand, and held there firmly 

 with the left thumb. The wings are now 

 tied in, the quill and part of the fibres at- 

 tached cut off close, and the head finished 

 off. The illustration of the imitation Blue- 

 bottle, etc., shows its appearance when 

 finished. 



Those Diptera whose wings lie, when at 

 rest, one over the other (as in the case of 

 the Cow-dung), my reader will see that I 

 have represented in my imitations, with 

 their wings spread to a certain extent. 

 This is because I have seen that, in the 

 natural fly, when it falls on the water, the 

 wings are most often in this position. 



In Perlidse, whose wings lie one over 

 the other, the wings should be put in the 

 position they occupy in the natural fly, 

 instead of across each other, and the fly 

 will appear when finished like the illus- 

 tration of the imitation Yellow- Sally. 



The dressings which I have found most 

 successful will be described with each fly. 

 It will be noticed that I have put tinsel 

 ori many of the flies which have been 



