Explanation of Plate XLIII. 
Pupa of C. avis. 
Fig. 1. Portions of sixth, seventh and eighth abdominal segments 
X 50, to show spiracle on sixth and only scars on seventh and 
eighth. The obsolete seventh abdominal spiracle being characteristic 
of Theclid pupae. 
Fig. 2. A spiracle and its surroundings of third abdominal segment 
X 100, showing lenticles and rosettes and hairs, the latter as already 
explained damaged in preparation. 
