Southern house mosquito (fe- 

 male, enlarged). The north- 

 ern and southern house mos- 

 quitoes are very similar in 

 appearance. They are pale 

 brown, with whitish bands 

 across the abdominal seg- 

 ments but no other conspic- 

 uous markings. Note the 

 threadlike antennae, which 

 distinguish the female from 

 the male. 



Yellow-fever mosquito (male, 

 enlarged). (After Edwards.) 

 This mosquito is very dark, 

 with a silvery lyre-shaped 

 mark on its back and silvery 

 bands across the abdomen 

 and legs. Note the plumed 

 antennae. 



933636°— 51 



