CHANGES IN THE NERVOUS SYSTEM 



647 



show the changes wrought especially 

 in the digestive and nervous systems 

 of Sphinx and Vanessa, his account of 

 the alterations in the muscles having 

 already been quoted. As the pupal 

 form is much nearer to that of the 

 imago than of the larva, so the diges- 

 tive canal is seen to be nearly as much 

 differentiated in the pupa as in the 

 imago, though the reservoir (" suck- 

 ing-stomach") of the imago is not 

 indicated in the pupa. These changes 



FIG. 601. Nervous system of the larva FIG. 602. Nervous system of the pupa of Sphinx 



of Sphinx liffustri. ligustri, soon after pupation. This and Fig. 601, 



after Newport. 



