FLIES FOR SEPTEMBER. 123 



To make it buzz, a dark dun hackle may be 

 wound upon the above body. 



REMARKS. The House or Shade Fly (Musca 

 domestica) may be noticed here. A first-rate 

 angler used to make it thus, for July : 



WINGS. From under covert feather of water- 

 hen's wing. 



LEGS. Blue starling feather. 



BODY. Light brown and pea-green wool mixed. 



HEAD. Green peacock's herl, and three laps 

 under the wings. 



Hook No. 2, short. 



A first -rate killer. 



The larvce of various flesh-flies, of which, 

 under the name of " gentles," even the fly-fisher 

 at times avails himself to conceal his hook, have 

 a curious history of their own. The eggs laid 

 by the parent fly, when she " blows " any fish or 

 flesh, sometimes hatch in the short space of two 

 hours. It has been found (by Redi) that these 

 maggots, of which one day it took thirty to 

 weigh a grain, weighed the next day seven 

 grains each : having thus in twenty-four hours 

 become about 200 times heavier than before 

 (Kirby and Spence, vol. ii. p. 398). When full 

 grown, these gentles quit their prey, to bury, 

 and assume the pupa state. 



