HOW TO KNOW THE IMMATURE INSECTS 



5b. 1st and 2nd tarsal segments together as long as 3rd or at least 

 more than hali as long; labrum not 

 very much wider than long; labium 

 4-lobed; body more or less cylindrical, 

 not brightly colored; herbivorous. 

 Fig. 128 6 



Fig. 128. Labium; 

 hostata Banks; b, 

 venoso Banks. 



6a. Hind wing pads diverging considerably outward from the body. 

 Fig. 129 FamUy NEMOURIDAE 



The members of this family are widely distributed. 

 Their tails are characteristicly short. The adults are 

 usually dork colored. 



Fig. 129. Leac- 

 Iro d«c«pta 



Classen. 



6b. Hind wing pads wider than fore wing pads and not divergent out- 

 ward from the body. Fig. 130 Family CAPNIIDAE 



The smallest known stoneflies belong to this com- 

 paratively small family. 



The naiads are herbivorous and live in small 

 water-courses. The color of the naiads is brown or 

 blackish. 



Fig. 130. Capnia 

 vernalis New- 

 port. 



61 



