THE NEW JERSEY MOSQUITO FAUNA 31 



they flew within six inches or less of the trap they were sucked in and 

 washed down the cone of screen wire into the fruit jar which, of course, 

 was equipped to act as a cyanide bottle. 



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Fig. XI. Record of one month's catch of female mosquitoes taken in N. J. 

 mosquito trap. 



By 1933 the type of trap was changed, and the cost of construction 

 reduced. The tube was suspended vertically under a conical cap of 

 twice the diameter of the barrel. The light bulb was mounted immedi- 

 ately under the large conical cap. The screen wire cover was made to 

 deliver at the bottom of the barrel instead of at the side. The whole 

 trap was suspended vertically from a one-armed standard by a fitting 

 in the apex of the conical cap instead of, as in the 1932 type, being 

 mounted horizontally on a turn table. 



