OTHER MEMBERS OF THE CLASS FNSECTA 191 



Fig. 135. — Xest ut" Polistes : some of the open cells contain c^ 

 lar\'::f ; the closer! cells contain pupa;. 



and some 



another species take the eggs of the plant hce to their nests 

 and care for them (kuing the winter. 



Wasps, hornets, and yellow jackets are mosth' social 

 insects and live in colonies in 

 nests built of papery material. 

 They make these nests of bits 

 of wood obtained from fences, 

 stumps, etc. These liits are 

 chewed fine and converted into 

 a paste by their jaws, and then 

 allowed to drv. 



One kind of wasp builds a n- |>" - v .-asp (PoZl,«.,) that 



' _ builds an uncovered layer ot cells 



nest composed of a horizontal for a nest. 



