70 Proceedings of the Biological Society of Washington. 



Explanation of Plate I. 



Fig. 1. Anastocchus nitidulus, lateral view of apex of pupa. 



Fig. 2. Anastocchus nitidulus, front view of head of pupa. 



Fig. 3. Anastocchus nitidulus, lateral view of head of pupa. 



Fig. 4. Hyalanthrax alternata, front view of mouth parts of pupa. 



Fig. 5. Hyalanthrax hypomelas, front view of mouth parts of pupa. 



Fig. 6. Hyalanthrax lateralis, front view of mouth parts of pupa. 



Fig. 7. Hyalanthrax alternata, dorsal view of upper cephalic processes 



of pupa. 

 Fig. 8. Hyalanthrax alternata, lateral view of apex of pupa. 

 Fig. 9. Hyalanthrax hypomelas, lateral cephalic process from below. 

 Fig. 10. Hyalanthrax lateralis, lateral cephalic process from below. 

 Fig. 11. Hyalanthrax alternata, lateral cephalic process from below. 

 Fig. 12. Chrysanthrax fulvohirta, lateral view of apex of pupa. 

 Fig. 13. Chrysanthrax fulvohirta, front view of head of pupa. 

 Fig. 14. Chrysanthrax fulvohirta, lateral view of head of pupa. 



