175 

 The lateral scales are very variable in shape, 



1 . In Mansonia they are broad asymmetrical 

 flat scales. 



2. In Aedomyia the scales are similar. 



3. In Mucidus the wing scales are quite 

 characteristic, being pyriform or inflated and half- 

 dark, half-white. 



4. In Megarhinus the scales may be azure 

 green or blue. 



The Wing Fringes consist of — 



1. Long narrow-pointed scales attached to 

 the edge of the wing by a narrow stalk. 



2. Smaller scales similar in shape. 



3. Border scales. Small flat scales. 



Leg Scales. — The legs are covered with flat 

 scales in nearly all Culices. 



1. In Sabethes the scales are hair- like and 

 occur in tufts. 



2. In Mucidus, Psorophora, the scales are 

 elongated and project from the legs. 



The sub -family Anophelina contains, as we 

 shall see, twelve genera, the Culicinae twenty-five, 

 and the Aedeomyina seventeen. When we consider, 

 further, the large number of species in some of these 

 genera, e.g., Culex, it is impossible to attempt here 

 to describe each mosquito, however briefly. Con- 

 sidering the great importance, however, of the 

 Anophelinae, we shall attempt to give the charac- 

 teristic specific points for each of the species, as an 

 aid to a detailed examination by means of 

 Theobald's monograph. With regard to the 

 other sub-families we shall attempt only to give 

 characteristics of each genus. 



The Culicidae are divided into the following 



