io8 



THE FOOD OF ANIMALS 



ROVE- BEETLES. The Rove- Beetles (Staphylinidce) constitute 

 another very large universally-distributed family of carnivorous 

 beetles, with slender elongated bodies and short wing-cases. A 



Fig. 385. Newts and Fresh-water Insects, i, Great Water-Beetle (Dytiscus marginalis) 

 2, Water-Scorpions (Nepa cinerea) 



familiar native species is the Devil's Coach- Horse (Ocypus olens) 

 (see vol. i, p. 368), which, like most of its kind, turns up the 

 tip of its tail when interfered with. 



WATER- BEETLES (fig. 385). Some of the flesh-eating beetles 

 live in fresh water, and among these is the Great Water- Beetle 



