ANIMAL BEHAVIOR. WITH EXAMPLES 



207 



The completed nest of the Jng-viahing Wasp {Eumenes fra- 

 termis). As many as three mud tiests are sometimes sad- 

 dled on a twig. In each jug green caterpillars are stored 

 as food for the grub that hatches from the egg the 

 wasp deposits before finally sealing the opening. 



