120 FLIES AND FLY FISHING. 



23. The Female Yellow Dun is a good evening fly in 

 June and July, where it appears, but it is a local fly. It 

 kills well in Herefordshire. I do not pretend to say 

 whether this really is the female of the yellow dun ; but 

 as it comes out at a different season, and there are num- 

 bers of rivers that throw up the yellow dun on which it 

 is never seen, the probability is that it is a distinct fly. 



Hook, No. 8. 



Body : Light buff-coloured mohair. A very light, 

 almost white, dun hackle. 



Tail : Four very long strands of same. 



Wings : Any very light shiny feather, with a very pale 

 blue tinge. 



The wing should be longer than on most flies. 



24. The Fern Fly is an imitation of a reddish, orange- 

 coloured beetle, which comes out in June, and lasts until 

 the end of July. It should be used on ivarm, windy days, 

 and only where there are trees overhanging the water, 

 and always as stretcher fly. It is a fly that only kills 

 occasionally, on some waters not at all. It is generally a 

 good fly for brooks, and also on some rivers in France and 

 Germany. 



Hooks, Nos. 9 and 10. 



Body : Wrap nearly three quarters of the hook very 



