10 IDENTIFICATION OF INDIVIDUAL SPECIMENS. 



are both familiarly known as the Sherry Spinner. Doubtless 

 the name was first suggested by the amber coloured thorax 

 and abdomen of the female, to whom it applies much more 

 aptly than to the male. The Blue-winged Olive Dun, of both 

 sexes, has wings of a bluish-grey shade, the thorax and abdomen 

 are of a strong greenish-olive colour. This fly in both condi- 

 tions bears three seta;, which at once give the clue to its 

 identity. 



IDENTIFICATION OF INDIVIDUAL SPECIMENS. 



There are only five flies commonly to be found on the 

 chalk streams of the southern counties, which are of surpassing 

 interest to the Dry-fly man :- - 



(1) The Mayfly. 



(2) The Blue- winged Olive. 



(3) The Olive. 



(4) The Pale Watery. 



(5) The Iron Blue. 



Having secured a victim with the help of hat or net, the 

 first question to decide is whether it is a dun or spinner. An 

 inspection of the wings as previously described will soon put 

 this matter beyond a doubt. 



Next to be settled is the sex. Large eyes and forceps 

 or the lack of them will quickly dispose of this point. 



Now count the setae: Mayflies and Blue-winged Olives 

 have three setie, the others only ttvo. In the case of a three- 

 pronger, if you are unable to decide between a Mayfly and a 

 Blue-winged Olive you had perhaps better give up fishing and 

 take to golf. 



The two-prongers are not so easy, but the following tables 

 may help to clear things up : 



