EXPLANATION OF PLATE XIX. 



Fig. I. — Lateral view of the larva of Chaohorus manilensis. 



5 5 2. — Lateral view of the larva of C. manilensis. 



,, 3. — Mandible of the same. 



,5 4. — Portion of the last abdominal segment of the larva more 

 highly magnified. 



5. — The two types of hooks from the abdomen. 



6. — Pupa of C. manilensis, lateral view. 



7. — Tail-fins of the pupa as seen from above. 



8. — Larva of Dixa montana, dorsal view. 



9. — Antenna of the same. 

 10. — Left mandible of the same as seen from above. 

 11. — First maxilla of the left side as seen from above. 

 12. — Two types of hooks from the abdominal feet. 

 13. — Pupa of D. montana, lateral view. 

 14. — Tail-fins of the pupa as seen in a dorsal view. 



