288 THE DRY-FLY MAN'S HANDBOOK 



been found in autopsies of trout sent to Mr. Mosely 

 from Ireland and also from Lancashire. 



Another of the Perlidae, the february red 



( Tceniopteryx nebulosd), is taken 



February red. freely by the fish in rivers 



where it is plentiful, and in 

 these parts is in great repute. 



Nemoura meyeri. A very common member of the 



family, often mistaken for the 



Nemoura meyeri, february red. The whole of 



this genus may be identified 

 by a curious X-like configuration of the nervures 

 towards the costal margin of both anterior and 

 posterior wings. 



The willow-fly, needle-brown, or Spanish needle 



{Leuctra geniculata) is very 



Willow-fly. plentiful on most of the 



British rivers. It makes its 

 appearance generally in the late summer and 

 continues in evidence throughout the autumn. Its 

 appearance when in repose or crawling about is 

 shown in Fig. 36, given in Chapter I of this part, 

 as the type of the stoneflies or Perlidse. As remarked 

 there, when fluttering with its four long and narrow 

 wings moving in the air it looks quite a large 

 insect, while at rest it resembles nothing more than 

 what is suggested by its two popular names, a needle, 

 but of an unduly thickened description. I have on 

 one occasion found a considerable number of these 

 insects in an autopsy of a large grayling killed at 



