Plate XVI. 



(To be bound facing Plate XVI.) 



Prolegs of larva of Strymon pruni. 



A. Prolegs of 5th abdominal segment. B. Prolegs of 6th abdominal segment. 

 Segment of larva in third instar from right side x 60. 



The figure shows well the presence of two separate pads of hooks on each pro- 

 leg, also the alternating larger and smaller hooks in each pad. The hairs (partly 

 cut off) at top of picture belong to the group representing tubercle vi, the large 

 central patch belongs to vii ; there are also hairs on the stem or pedicel of the 

 proleg itself. 



