66 OLD FLIES IN NEW DRESSES 



than the head of the female. Both the 

 male and female have a dark oval-shaped 

 patch about the middle of the anterior 

 margin of the front wing. 



Both these flies are taken greedily by 

 the trout when they fall upon the water. 



I have found the following dressing the 

 best : 



Body. Peacock quill dyed black, or black 

 silk. 



Hackle. Cock starling's hackle, stripped 

 on one side. 



Wings. (Male) From most transparent 

 part of quill feather of starling. (Female) 

 From brown tipped starling's tail feather. 



Hook. No. 0000, new size. 



An illustration of the imitation fly is 

 given on Plate II. 



HAWTHORN FLY (Bibio marci, Linn.) 



Bibio marci is commonly called the Haw- 

 thorn-fly, and was described under this 

 name by Ronalds. It is, speaking broadly, 

 first cousin to the Black Gnat, though it is 

 very much larger. It appears at the end of 

 April or the beginning of May. The body 



