THE CATERPILLAR AND THE MOTH 



the caterpillars go back to the surface of the tent, usually 

 by eight-thirty or nine o'clock. Here they do a little spin- 

 ning on its walls, but no strenuous work is attempted at 



Fig. 147. Mature tent caterpillars feeding at night 



this time, and generally within half an hour the entire 

 family is reassembled inside the tent. Most frequently 

 the crowd collects first in the shady side of the outermost 

 story, but as the morning advances the caterpillars seek 



[271] 



