CADDIS-WORMS. 



109 



their sides or backs. They are very active, inoffensive, 

 and interesting aquarium objects. 



Fig. 62. 



4, 5, 6. Various species of Caddis-worms (Phryganea). 

 3. Larva when taken out of case. 

 I and 2. Perfectly developed insects. 



The various species of caddis-worms which haunt 

 our streams, ponds, and lakes belong to the order 



