134 



HYMENOPTERA. 



Europcca is one of the largest species ; tliey are supposed 

 to be parasitic in the nests of other insects. 



The FossoRES or Diggers consist of the Sand-wasps 

 and Wood-wasps ; they are solitary in their habits, and 

 excavate cells in wood or earth, in which they bury 

 other insects which they have captured, and disabled 

 by stinging them. The eggs are deposited in the cells, 

 and the larvae, when hatclied, find food ready at hand. 



Nest of Wasp (.interior 



2sBST OF Wasp (exteriuf 



Sometimes dead insects are stored in the cells. In 

 Plate v.. Fig. 8, will be seen a drawing of a Sand-wasp 

 {Ammophila sabulosa), somewhat magnified. 



The Diploptera or True-wasps consists of the Solitary- 

 wasps {Eumenidas), and the Social-wasps ( Vespidoc) ; 

 the former live isolated and consist only of males and 

 females; the genus Eumenes is the type ; there is only 

 one Britsh species (E. coarctata) ; this insect forms a 

 nest ot mud or fine earth of spherical shape, which it 



