INSECT ACTORS 127 



motionless for a time, so that it creeps upon its 

 victim unobserved like a Red Indian stalking his 

 prey, and kills it with a stab of its sharp beak. 



Amongst the aquatic insects the well-known 

 Caddis-worms construct for themselves quaint, 

 untidy-looking habitations into which they can 

 retreat in safety before the onslaught of the 

 voracious dragons of the pool. 



