ORL FLY. 105 



gradually above the surface of the water; the 

 body next disengages itself slowly and by de- 

 grees, till at length the whole animal comes out 

 of its shell. The new-born fly remains for some 

 minutes motionless upon the water ; then gra- 

 dually revives, and feebly shakes its wings; 

 then moves them quicker, and attempts first to 

 walk, then to fly. As these insects are all 

 hatched nearly at the same time, they are seen 

 in swarms for a few hours flitting and playing 

 upon the surface of the water. The male and 

 female then unite and couple together for two 

 more hours, when they again return to their 

 sports, lay their eggs, and soon after die. Thus 

 they terminate their short life in the space of a 

 few hours, and the same day that saw them 

 born witnesses their death/' 



OrlFly. 16. 



During the whole of June this fly may be 

 seen playing upon the top of the water, and is a 

 good killing fly from ten o'clock till four, es- 

 pecially after the May Fly is gone, It has four 

 wings lying close to the back, which should be 

 made of a dark grizzle cock's hackle; the 

 body of peacock's herl worked with dark red 

 silk ; the hook No. 7. This fly is principally 

 used in very warm weather. 



