IV 



The Malarial Mosquitoes of the Genus 

 Anopheles 



TO physicians and others who are investigating the 

 malarial conditions of a given neighborhood it 

 becomes very important to know everything con- 

 nected with this most noxious genus of insects. Not only 

 is it necessary to be able to recognize them in every stage 

 of their existence, but also to know the character of the 

 pools in which they will be found in their early stages, 

 since much time may be wasted in searching for them in 

 places where they could not possibly occur, or in which 

 they are not likely to be found. This point must be borne 

 in mind, therefore, by those who, looking through this 

 chapter, think that the writer has gone into the subject 

 with apparently unnecessary detail. 



The genus Anopheles was founded by Meigen in 1818. 

 The first reference to its early stages which is to be found 

 in literature is in a f)aper entitled " Description of a New 

 Fish which I found in the water of the basin of S. Mag- 

 loire of the Fauxbourg S. Jaques at Paris, which can be 

 called an Aquatic Caterpillar," published in Paris in 1754 

 by an observer who possessed the euphonious name of 



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