ARTHROPOD A 87 



to rid one suburban residence of the pest while the next place is still 

 infested. They are delicate creatures and seldom attempt to fly in 

 a strong breeze, but a very gentle breeze may carry them for a consider- 



PiG. 66. Larva of Anopheles in feeding and breathing position, just below 

 the surface of the water (upper figure). Larva of Culex in breathing position, 

 at an angle to the surface (lower figure). Enlarged. (From Howard, Mosquitoes 

 of the United States.) 



able distance. They are often carried for many miles in railway trains 

 and other public conveyances to regions ordinarily free from them. 

 Knowing their breeding habits, the methods of mosquito control 

 will immediately suggest themselves; the first is to destroy all breeding 

 places; this may mean the drainage of swamps and ponds or it may sim- 



