THE MOSQUITOES 



The important ones from a medical standpoint are the Anophelinae 

 and Culicinae. 



Anophelinae. 



i.' Scales on head only; hairs 

 on thorax and abdomen. 



2. Scales on head and thorax 

 (narrow curved scales). 

 Abdomen with hairs. 



Scales on head and thorax 

 and abdomen. Palpi 

 covered with thick scales. 



1. Scales on wings, large and lanceolate. Anopheles, 

 Palpi only slightly scaled. 



2. Wing scales small and narrow and lanceolate. 

 Myzomyia. Only a few scales on palpi. 



3. Large inflated wing scales. Cydoleppteron. 



i. Wing scales small and lanceolate. Pyrelophorus. 



i. Abdominal scales only on ventral surface. 

 Thoracic scales like hairs. Myzorhynchus. 

 Palpi rather heavily scaled. 



2. Abdominal scales narrow, curved or spindle- 

 shaped. Abdominal scales as tufts and dorsal 

 patches. Nyssorhynchus. 



Abdomen almost completely covered with scales 

 and also having lateral tufts. Cellia. 



4. Abdomen completely scaled. Aldrichia. 



NOTE. Of the above genera only Cydoleppteron and Aldrichia are unproven 

 malarial transmitters. 



The Megarhininae are of no importance medically. 

 The genus Megarhinus has the following characteristics: 



1. Large mosquitoes with brilliant metallic coloring. (Elephant mos- 

 quitoes.) 



2. Long, curved proboscis. 



3. Caudal tufts of hairs on each side of abdomen. 



The ^Edinae are not known to play any role in transmission of diseases. This 

 subfamily is characterized by having the maxillary palpi much shorter in both 

 males and females than the proboscis. 



One genus Sabethes is very characteristic, owing to dense paddle-like scale 

 structures on two or more legs. 



