Mosquitoes and Malarial Fever 



517 



tic and oviposit in wells, cisterns, water-butts, cans and any other 

 available collection of water. 



The eggs are laid as the female hovers upon the surface, touch- 

 ing the water from time to time, with the tip of the abdomen, each 



i 3 I a 7 8 



Fig. 193. — Pupa of Anopheles maculipennis (Brumpt). 



. Brushes 

 /'_. Maxillary palyp 



Antenna 

 , Eye 



" Head 



.... Thorax 



Silky bristles 



Abdomen 



Chitinous combs 



Stigmata . 

 Anal papillae 



Large bristles 



Fig. 194. — ^Larva of Anopheles maculipennis (Brumpt). 



time depositing an egg. Culex eggs are fastened together side by 

 side to form a kind of minute raft, but anopheles eggs are laid singly, 

 and float away independently of one another. If at the time the 

 eggs are laid the waters are receding, they may catch upon the leaves 



