HYMENOPTERA. 



347 



THE DAUBER (Pelopaus- 



?), carrying a Spider (Tetragnatfta*) 

 to its nest. 



killed, but rendered helpless. The grub spends 

 its life in this dark and solitary prison, and when 

 full grown, having eaten the abdomens of all or 

 nearly all the Spiders, forms an oval cocoon of a 

 brittle shelly substance, and goes into pupa; the 

 perfect fly when evolved gnaws its way through the 

 mud walls with its strong jaws, and for the first time 

 beholds the light. 



tetra, four, and yvu,Qo;, gnatltos^ a jaw. 



