200 



Bugs, Butterflies, and Beetles 



174) where they may be observed all the time. But 

 since the water beetles will come out at night to 

 fly around, the aquarium should be protected by a 

 wire netting. Some of the smaller water beetles 



I 



u ..^^^ If A 



have an odd habit of swimming around and around 

 on the top of the water in the aquarium, all the time 

 emitting a whining, complaining noise. Others, 

 like the whu-ligig beetle (Fig. 175), for instance. 



