210 Bugs, Butterflies, and Beetles 



larvae are said to be meat eaters, hut some of them, 

 when they grow to be beetles, repent and become 

 vegetarians. One kind is known as the Scavenger 

 beetle (Fig. 183) because it has a very useful way 

 of eating all the decayed matter and thus cleaning 

 out one's aquarium. But we cannot give more 

 space to these live submarines (yes, not only are 

 they submarines, but also hydroplanes and aero- 

 planes and surface swimmers combined — Figs. 

 184-188), our object being only to start the reader 

 on the road to hunting, captui'ing and keeping some 

 of them alive, for besides being instructive, they 

 are a source of endless amusement, not only to the 

 boys who collect them but also to the parents of 

 the boys and their guests. 



