The Mosquitoes of New Tersev 



95 



A very satisfactory and simple method of keeping a record of the 

 results of night collections is to be found in the practice of pinning 

 the figures representing the results of a single evening collection on 

 a map of the district being protected (the results at each station be- 

 ing pinned at a point on the map representing the spot where they 

 were taken) and photographing the map thus decorated. Negatives 

 or prints or both can then be filed for later reference. 



Fig. 57. A night collection record. (Courtesy of the Union County Mos- 

 quito Extermination Commission). 



The Malarial Mosquito Group 



Only four species of the genus Anopheles have been definitely 

 recognized as occuring in New Jersey: A. barberi, A. crucians, A. 

 punctipemiis, and A. quadrimaculatiis. The first species has thus 

 far proven of no economic importance and will be given only pass- 

 ins: mention. 



The Daylight Anopheles 



{Anopheles crucians Wied.) 



This species, which is the least common of the important Ano- 

 pheles known in New Jersey, may be distinguished from other Ano- 

 pheles by the fact that the black scales are collected along the front 

 margin and the wing spots mentioned as characteristic of the other 

 species are absent. 



