i86 



Chapter XVI 



THE CLASSIFICATION AND IDENTIFI- 

 CATION OF THE ANOPHELINAE 



It is by no means an easy matter to fix 

 definitely the species of an Anophelme, and yet the 

 identification of species is essential in connexion 

 with malarial studies. It does not suffice merely 

 to ascertain that Anophelmes are present in any 

 given locality, but it must be clearly; made out 

 what the species are. It is, indeed, only by accu- 

 rately observing the relation of Anophelines to 

 malaria that we can hope for the explanation of 

 many of the difficulties surrounding the anomalous 

 distribution of endemic malaria. In a later 

 chapter the extreme importance of the species of 

 Anophelines in this connexion will be evident. In 

 the description of the habits of Anophelines, their 

 breeding places, occurrence apart from man, etc., 

 it is no longer sufficient to ascribe these to the 

 whole genus, but they must be ascribed to the 

 actual species involved. The study of the 

 Anophelines from the point of view of classification 

 and identification is, therefore, of importance. 



Classification of Anophelinae 



Theobald has sub-divided the old genus 

 Anopheles into twelve new genera. These genera 



