44 POPULAR ENTOMOLOGY. 



SECTION II. 



AUROCORISA. Those breathing the air. 



1. Acanthida. Legs long and slender; antennae half the 



length of the body ; eyes large ; rostrum long and 

 slender; body oval and depressed; tarsi three-jointed. 

 Locality, the sea-shore and banks of rivers. 



2. Hydrometrida, Legs variable in different genera, but 



not raptorial ; tarsi two-jointed ; antennae long, slender, 

 four-jointed ; rostrum of moderate length ; head as 

 broad as the thorax ; body long and narrow. Locality, 

 the surface of running or standing water. 



3. CimiddcB. Legs moderately long and slender; tarsi 



three-jointed ; antennae four-jointed ; rostrum long ; 

 wings reduced to a pair of short scale-like pieces; 

 body more or less round. 



4. Tingida. Fore legs sometimes raptorial; tarsi often 



only two-jointed; antennae filiform; rostrum very short; 

 body broad and depressed. 



5. Capsidae. Legs long and slender; tarsi three-jointed; 



antennae long, second joint often thick at the tip, and 

 the terminal ones very slender ; rostrum long and 

 four-jointed ; the crustaceous part of the elytra termi- 



