ANOPHELINE OR MALARIA MOSQUITOES 



Anopheline Characteristics. — As already stated, the 

 subfamily Anophelinae is distinguished from the Culi- 



cinse by the presence of 

 long palpi in both males 

 and females (Fig. n, b, c). 

 The proboscis is always 

 straight and the scutellum 

 is simple, never trilobed 

 (Stephens and Christo- 

 phers). The commoner 

 Anopheline species of North 

 America have also a character- 

 istic resting attitude, i.e. the 

 bod>' is usually thrown up at 

 an angle with the surface upon 

 which the insect is resting ; this 

 angle is the greatest when the 

 individual is resting on the 

 ceiling, for the reason that grav- 

 ity acts on the heavy abdo- 

 men. When resting on a table 



Fig. 1 6. Characteristic attitude , . i r i • 



of adult mosquitoes, (a) Anopheles Or Other hOHZOntal Surface, thlS 

 (malaria bearing), with body nor- . Til 



mallyat an angle of from 2 5 °to 55° angle IS not SO great. In all 

 with the surface ; (b) Culex (body , ... , 



parallel). cases the proboscis is nearly 



i' 



