HEMIPTERA 57 



the bottoms of pools. There is a smaller species which is 

 less abundant. 



On the surface of the water of quiet pools and even 



FIG. 34. Types of True Bugs (Heteroptera). Slightly reduced. 



1. Giant water-bug ^Belostomidci) ; 2, Back-swimmers (N otonectidai) ; 3, Thread- 

 legged bug (Emesidce) ; 4, Water-boatman (Corisidae) ; 5, Water-scorpion (Nepidce) ; 

 6, Bdostomidce; 7, Water-strider (Hydrobatidce); 8, Marsh-treader (Limnobatidae) ; 

 9, Toad-shaped bug (Galgulidce). 



on running streams may frequently be seen numbers of 

 spider-like creatures with slender bodies and long legs. 



