WASP ARCHITECTURE 



139 



catcher in South America that makes its 

 home close to the nest of one of the social 

 wasps. 



There is a South American wasp that 

 builds its combs in concentric spheres, 

 instead of in horizontal layers, and this 

 thickly packed interior is surrounded and 

 protected by a very thin wall. 



Another social wasp builds its comb 

 along the trunk of a tree, covering it over 

 with an outer shell. 



A pretty little nest is found in South 

 America attached to the under side of a 

 large, strong leaf. It consists of one flat 

 comb of tiny cells covered over by a hard 

 shell or wall. 



Indeed there seems to be no end to the 

 variety in form, size and material of the 

 nests of the social wasps 

 in diflferent parts of the' 

 world, and the traveller 

 in tropical countries 

 will do well to remem- 



