208 



Insect Architecture. 



body in a bent or somewhat coiled-up position. On sawing 

 off a portion of an old poplar in the winter of 1827, we 

 found such a cell with a caterpillar coiled up in it. 



Caterpillar of Goat-Moth in a Willow Tree. 



It had not, however, been contented with the bare walls 

 of the retreat which it had hewn out of the tree, for it had 

 lined it with a fabric as thick as coarse broadcloth, and 

 equally warm, composed of the raspings of the wood scooped 



Winter Nest of the Goat-Caterpillar. 



out of the cell, united with the strong silk which every 

 species of caterpillar can spin. 'In this snug retreat our 

 caterpillar, if it had not been disturbed, would have spent 

 the winter without eating ; but upon being removed into a 



