OTHER MEMBERS OF THE CLASS — INSECTA 191 



KiG. 135. — Nest of Polistes : some of the open cells contain eggs, and some 

 lar\-tc ; the closed cells contain pupse. 



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

 and care for them during the winter. 



Wasps, hornets, and yellow jackets are mostly 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 bits are 

 chewed fine and converted into 

 a paste by their jaws, and then 

 allowed to dry. 



One kind of wasp builds a F'o-.i3i>.-a wasp (™,.s-(..,) that 



' _ builds an uncovered layer of cells 



nest composed of a horizontal for a nest. 



