44S NEW YORK STATE MUSEUM 



gg Comb scales in a triangular patch, about 16, each with one or 



two very short, subapical spines 



Culicelsa auroides 



ggg Comb scales in a curved line, about 15 and with a patch of 



much finer, comblike scales ant erioriy ; a large species i^ 

 inches long. . . Giant mosquito, Psorophora ciliata 

 ddd Comb scales 25 or more 



e Antennal tuft before or at the middle 



7 Pecten pale, prolonged into setae; comb scales digitately 

 divided 



g Chitinized parts ver>' dark, stout 



Theobaldia incidens 



gg Chitinized parts lighter and weaker 



h Comb scales about 60. pecten teeth with one or two basal 



processes Culiseta absobrinus 



hh Comb scales 40. pecten teeth with two or three basal 



processes 



Culiseta consobrinus (C. magnipennis) 

 fj Pecten not as above 



g Tiift of antenna reduced to a single hair; comb scales about 

 46. in tive rows, several pecten teeth widely separated from 



the remainder Culicada atropalpus 



gg Tuft of antennae normal 



h Comb scales with a moderate apical spine, narrowly 

 spatiilate at base 

 i Comb scales 28-64; niouth brush moderate; tip of 



antennae dark 



Woodland pool mosquito Cu licada canadensis 



ii Comb scales 2 5 ; mouth brush large 



Culicada pullatus 



liii Comb scales each with a stout apical spine, broadly 

 spatulate at base 



i Air tube about three times as long as its greatest diameter ; 

 antennae moderately long with a sUght swelling near the 

 base, 25-50 comb scales and 16-24 pecten; head im- 

 maculate 



Brown wood mosquito. Culicada subcantans 

 ii Air tube about twice as long as its greatest diameter; 

 antennae shorter, without a sweUing near the base: 

 spines and scales as above; head maculate. ... 

 Brown salt marsh mosqmto. Culicada cantator 

 iitih Comb scales with 4-6 stout, nearly equal apical spines, 



somewhat spatulate at base 



i Comb scales about 60 in number 



...Culicada lazarensis 



ii Comb scales about 30; pecten teeth ig 



Culicada curriei 



ee Antennal tuft beyond the middle 



/ Comb scales about 80, in a triangular patch of 10 rows, pecten 



apparently simple Culicella dyari 



7/ Comb scales 25-30. pecten small, 14-20. minutely toothed 

 Golden mosquito, Culicelsa aurifer 



