MOSQUITO BIOLOGY 93 



of basal joint, basal joint very long, the apical two short, greatly swol- 

 len. Antennae dark brown in both sexes with basal joint of female paler. 



Fig. XXVIII. Adult of mottled wing Anopheles. Anopheles punctipennis Say. 

 (After John B. Smith.) 1, female adult; 2, her palpus; 3, genitalia; 4, part 

 of wing vein showing scales; 5, anterior and 6, middle claws of male (all 

 much enlarged). 



Dorsum of thorax dark velvety brown at sides, with four weak median 

 stripes of yellowish gray hairs, arranged on elevated ridges, dividing 

 depressions brown ; pleura dark brown with few scattered whitish scales. 

 Legs very long and slender, dark brown, becoming almost black on 

 tarsi, femora slightly paler beneath ; knees and apices of tibiae have 

 distinct yellow dot. Claws of anterior tarsal joint in male very unequal 

 in size, large claw with median tooth and projecting extension of base 



