128 



GNATS OK MOSQUITOES — CHAPTER VII 



book, "Mosquitoes and Malaria," is probably a Stegomyia 

 (pi. v., figs. 9, 10). 



The larvEe oi Anopheles on the other hand, lie absolutely 

 horizontally, with the respiratory orifices, which are almost 



Fig. 30. — Lai-v.T and pupa? of C. fatigans, Wiod., photographed 

 from life, about twice natural size. 



flush with the rest of the dorsum, just emerged, and the 

 head barely submerged. 



Lying in this position, they look just like scraps of straw- 

 blackened by long immersion, and as they often lie motion- 



