6o 



The Female. In the female the antennae are 

 inconspicuous and have only short lateral hairs. The 

 palps are also less conspicuous than in the male 

 (Fig. 18). 



The female feeds upon blood, and is frequently 

 seen with the stomach distended with blood, more or 

 less digested. 



The female is also seen with the abdomen more or 

 less swollen, with the greatly enlarged ovaries, which 

 give a whiteish and opaque colour to the mosquito, 

 and often make the insect much more conspicuous in 

 its flight than it otherwise would be. 



Fig. 1 8. Heads of Male ( $ ) and Female ( $ ) Culex 



The Culicidae or mosquitoes are divided into 

 several sub-families, e.g., Anopkelina, Culicina, etc. 



The sub-family, Anophelina, is in many ways the 

 most distinct of these groups. Not only are the adult 

 insects highly characteristic in appearance, but the 

 ovum and larva are quite unlike those of any other 

 sub-family. 



The points which serve to distinguish the 

 Ano-phelinae from other groups of mosquitoes are : 



I. The character upon which the sub-family is 

 founded, viz., the relative length of the palps and 

 proboscis. In both the sub-families, Culicina and 

 Ano-phelina, the palps in the male are long plumose 

 structures, ^as long or longer than the proboscis. In 



