112 



THE FOOD OF ANIMALS 



excavating at the centre, but commences operations by construct- 

 ing a groove to correspond with the margin of the proposed pit. 



Fig. 387. — The Ant-Lion {Myrmeleo forjuicarius). Perfect Insect, and Larva with its Pit 



Then it buries its abdomen in the sand, heaps some of the loose 

 material on its head by means of the fore-legs, and pitches it 

 off with a jerk to some little distance. The meaning of the 



