A full-grown grub of the Hover-fly has captured a green-fly by spearing il with the three-pronged fork at its mouth; 

 it then elevates it in the air by holding to the flower with its broad hinder part— for it has no feel — and in this position 



Phatoi hy-\ /. /. w^rd, F.E.S. 



sucks the green-fly until only an empty skin is left. This is dropped, and another green-fly is at once sought, when the 

 process is repeated over and over again, 



HOW THE HOVER-FLY GRUB FEEDS. 



