Till? BK.K-MOTIT. 



463 



almost into a knot, and to flatten itself out like a pancake. 

 If obliged to leave tlie hive, it gets under some board or 

 concealed crack, spins its cocoon, and patiently awaits its 

 transformation. 



Fig. 193. 

 COCOONS SPUN BY LAEV>aS OF BEB-MOTHS. 



809. The time required for the larvse to break forth into 

 winged insects, varies with the temperature to which they 

 are exposed, and the season of the year when they spin 

 their cocoons. We have known them to spin and hatch in 



