ROADSIDE LIFE. 



259 



tative of the family is Eumencs fraternus{Eu'ine-ncs f ra- 

 ter' iius), which makes a neat little nest, appearing like 

 a miniature water-jug, attached to a twig (Fig. 231). 



The Social Wasps. — The social wasps are the 

 builders of the well-known paper nests. There are 

 two types of these 

 nests. In one the 

 nest consists of a 

 single comb, sus- 

 pended by a pe- 

 duncle, and is not 

 inclosed by an en- 

 velope (Fig. 232). 

 The wasps that build nests of this form belong to the 

 genus Polistes {Po-lis'tes). In this genus the abdomen 

 is long and spindle-shaped (Fig. 233). The species 

 are black, ringed with 

 yellow, or are brown- 

 ish. 



In the other type 

 of nest there are sev- 

 eral combs when the 



Fig. 232.— Nest of Polistes. 



Fig. 233.— Polistes. 



Fig. 234.— Nest of Vespa. 



nest is completed, and all are inclosed by a spherical 

 paper envelope (Fig. 234). These nests are made by 



