92 The Control of Mosquitoes 



their clothing, although they frequently examined 

 the parts which were not exposed to the direct 

 rays of light. 



Mosquitoes not only enter trains to bite people, 

 but remain in passenger cars that are in motion 

 for long periods during the night time ; they usually 

 leave the car soon after daylight. Some are 

 accidentally trapped in train closets and freight 

 cars and are then transported long distances. 



The importance of Anopheles settling on people's 

 clothing, and being transported long distances and 

 into screened houses has not received the attention 

 it deserves. Cases have frequently been noted 

 in which they remained on a man's coat during a 

 stiff wind while he walked a hundred yards; and 

 even longer transportation by this means, or on the 

 backs of animals, is quite possible. 



While flight observations were being made at 

 Gatun, a chicken coop was examined at eight 

 o'clock on two consecutive nights. The observers 

 were bitten by Anopheles while watching the 

 chickens, but failed to note any mosquitoes trying 

 to bite the fowls. The Culex resting in large 

 numbers on the chicken roost were not gorged and 

 did not bite the fowls, but their position gave 

 them shelter from the breeze. Those outside this 

 shelter bit us freely. 



