WEALTH OF INSECT LIFE 



169 



is frequently much less, and the hind wings are- 

 always more fully developed, folding in plaits on the 

 body when the insect is at rest. The mouth is fitted for 

 biting, the parts frequently being rudimentary. 



The form in which these insects are most readily 

 observed is in the nymphal stage, when they can bo 



FIG. 130. A stone-fly (Perla 

 ephyre). 



FIG. 129. Stone-fly nymph. 



found under rocks, stones or logs in brooks. They are 

 not at first observed, so closely do they cling to the 

 overturned stone or log. Remove some of them to a 

 bottle of water. How many legs have they ? Of what 

 use are those fringes along the under side of the body ( 

 The White Ants. 1 - -While these are called ants, they 

 are not closely related to ants. Like ants, however, 

 they are social, and are represented by queens, kings, 

 workers, and a form not found among ants, the 

 soldier. 



'Family, Termitidce. 



