DISEASE-BEARING AMERICAN MOSQUITOES 



37 



C. fatigans passes the winter as an adult female. She hides 

 away in protected places and, when warm weather comes, lays 

 her eggs in dark-brown rafts of from 50 to 400 eggs. In about 

 8 or 9 days, if the weather is favorable, the adult of the new 

 brood emerges. Breeding is more or less continuous up to cold 

 weather in the autumn. 



C. fatigans ordinarily does not fly far. However, where pro- 

 duction is heavy, it may travel 2 or 3 miles. 



Fig. 37. — Adult female Culex fatigans. 



SOME COMMON TROUBLESOME MOSQUITOES 



In the next few pages, several of the more common annoying 

 mosquitoes prevalent in the United States will be discussed 

 briefly. So far as is known, none of these transmit disease, 

 but all are more or less troublesome in mosquito eradication 

 work. 



For the purposes of this discussion, it may be convenient, 

 perhaps, to divide these mosquitoes into rough groups as follows: 



