CH. IV.] DESCRIPTION OF THE CATERPILLAR. 81 



posed of twelve membranous rings; the head is 

 scaly, hard, and tapering ; the mouth is horizontal ; 

 it has sixteen feet, six of which are placed in front, 

 armed with claws, on the three rings nearest to the 

 head ; the other ten feet are placed behind, eight 

 of which are on the sixth to the ninth, and two on 

 the last ring- These feet may be termed holders. 

 There is also a kind of tail on the upper part of the 

 last ring but one. 



At the end of the period above stated the worm's 

 desire for food begins to lessen, though it continues 

 to nibble the leaves, which it scatters about ; its 

 colour is now of a light green ; it is very restless 

 and uneasy, erects its head, and moves from side to 

 side in a circular manner, seeking a corner where 



