7IC20 Genus of BlejjJuirocerid Flies. 



213 



Fijr. 18. 



Fitr. 19. 



Fitr. 20. 



So. 



Fisr. 21. 



Fio-. 22. 



El])ori(t capeih-'is. 



Fif. 18. — One of the lateral processes of the larva, more enlarged ; 



dorsal view. 

 Fig. 19. — The same, ventral view, to show form and position of 



giU-tuft. 

 Fisr- 20. — Tip of antenna of larva. 

 Fig. 21. — Anal armature of larva. 

 Fig. 22. — Spiracle of larva. 



