276 



HOMES WITHOUT H:VJ!fDS. 



mouths, a peculiarity which would hardly he noticed in a single 

 ccU, hut which produces the spreading outline when a number 

 of them are massed together. 



NESTti Oh P0U8TBS 



Some of the cells, those in the middle for example, are much 

 longer than the others, and in the specimens in the British 

 Museum many of them are closed at the mouth, showing that 

 the insect is within, and has not yet attained its perfect state. 

 Those on the circumference, however, are much shorter, and are 

 entirely empty, not having been yet occupied. It is very 

 possible that these cells would have been lengthened had the 

 insects been left to themselves. 



