Beetles 



22- 



The Haliplids are a small family of minute beetles, 

 having larvfe of unique form and habits. These larva- 



Fig. 132. Larvae of the beetle, Peltodyles, 

 in mixed algal filaments, twice natural 

 size; below, a single larva more highly 

 magnified. (From Matheson). 



live among the tangled filaments of the coarser green 

 algce, especially Spirogyra, and they feed upon the 

 contents of the cells that compose the filaments, sucking 



