218 . Explanation of Plate. 



Explanation of Plate XII. 



Suspension of Thais. 



Three several figures of the larvae of different individuals sus- 

 pended for change to pupa to show (which the smallest specimen 

 does most successfully) the position of the " girth " at this stage, 

 and three of pupa, the first with the girth in the Papilla position it 

 occupies during the first twenty-four hours after moult, the other 

 two with it in the well-known Thais position attached to the 

 nose-horn. 



