Explanation of Plate XIX. 
Fig. 1. Pupa ol' C. avis, dorsal view x 4. i tt • 
, w 1 . Q Photo, IT. Main. 
„ 2. „ „ lateral „ x 4-8. I 
„ 3. „ „ liead and portion of front X 30. 
Photo, F. N. Clark. 
