PLATE XVI. 

 [Proc. Wash. Acad. Sci., Vol. II, PI. XXV.] 



Cryptohypnus littoralis Esch. 



FIG. I. Dorsal view of full-grown larva. 



2. Upper surface of ninth abdominal segment. 



Hypnoides musctilus Esch. 

 FIG. 3. Dorsal view of full-grown larva 



4. Dorsal view of pupa (X8). 



5. Anterior region of the head, from above. 



6. Maxillse and labrum (X75)- 



7. Ninth abdominal segment from above. 



Leptalia macilenta Mann. 



FIG. 8. Dorsal view of larva. 

 9. Antenna? (X75)- 



10. Mandible (X35)* 



11. Maxillae and labrum (X35)- 



12. Leg (X7S)- 



[336] (208) 



