260 



THE MOSQUITOES OF NEW JERSEY 



MOSQUITO FLIGHT 



Howard, Dyar, and Knab (14) have brought together a group of 

 data bearing on the question of mosquito migration (Table X). 



It thus appears that the far-migrating species are those which breed 

 on the salt marshes, that twenty-five or thirty-mile movements are com- 

 mon, and that extremes of sixty miles may be reached. 



TABLE IX 

 Trap without CO2 



The addition of carbon dioxide for two hours each evening on an average increased 

 the catch of female mosquitoes from 565 to 2,613 or 4.62 times. 



TABLE X 



Data on Mosquito Migration 



