The Mosquitoes of New Jersey 



57 



as 40 miles from the place of breeding. Indeed, if the water per- 

 sists only 7 days the mosquitoes will find enough moisture in the 

 mud to complete their growth. Even if the water should drain off 



N.J. MOSQUITO AREA. AS IT WAS 

 BEFORE WORK AGAINST IT BEGAN 



aaS SALT MARSH AREA. 



L_ ! MiBRATION OF SALT MARSH SPECIES. 



Fig 28. Salt-marsh areas of the state and the upland territory which was 

 formerly covered by flights of salt-marsh mosquitoes. 



several times before the last day, should it return in every case be- 

 fore the mud dries up, most of the brood will complete its develop- 

 ment and escape. 



