SOCIAL-WASPS. 75 



In the specimen from which we take our description, 

 the length of which is nine inches, six stout circular plat- 

 forms stretch internally across, like so many floors, and 

 fixed all round to the walls of the nest. They are smooth 

 above, with hexagonal cells on the under surface. These 

 platforms are not quite flat, but rather concave above, like 

 a watch-glass reversed ; the centre of each platform is 

 perforated for the admission of the wasps, at the extremity 

 of a short funnel-like projection, and through this access is 

 gained from story to story. On each platform, therefore. 



JS'est of the Pasteboard-maker AVasp, with part removed to show tlie arrangement 

 ol the Cells. 



can the wasps walk leisurely about attending to the pupa3 

 secured in the cells, which, with the mouths downward, 

 cover the ceiling above their heads — the height of the latter 

 being just convenient for their work. 



Pendent wasps'-nests of enormous size are found in Ceylon, 



