PAPERS OX MEDICINE AND PUBLIC HEALTH 



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days' time, the eggs hatch into the larvae 

 Anopheles wigglers swim horizontally on the sui i 

 the water and when disturbed, dart laterally. C 



3 by 



pholes 



r Deaderick.) 



[ 

 rick. ) 



of Anopholes mosquito. (C 

 lain and Chalmers. Modified after 

 Howard. ) 



x ; 2 , 

 Anopholes; 3, 

 Aedes c o 1 s p u s. 

 :er Howard.) 



Larva of a culex mosquito, 

 ird. ) 



Resting posture of mosqv. -.nd 2, 



anophoies 



bon.) 



FU 



Life cycle of Anopheles and Culex mosquitoes. 



-lers hang head down, with their tails protruding 

 through the surface, their bodies at an angle of about 

 60 d with the surface, and when disturbed, dart 



downward. Although living in the water and feeding on 

 small organisms and plant life, the re at all 



