MOSQUITOS OR CULICIDAE OF NEW YORK STATE 



315 



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Fig. 58 Comb scale of 

 C. cinereoborealls 



lowish scales, numerous long flying hairs becoming quite dense at 

 the apex. Legs long, same color as female ; first j oint of posterior 

 tarsi almost as long as tibiae ; posterior ungues equal, unidentate ; 

 the fore and mid feet bear one large claw with two teeth and a 

 smaller one with one tooth. Wings longer and narrow^er than in 

 the female; petioles of the first and second 

 ^ubmarginal cells longer than cell, posterior 

 cross vein about its own length from the 

 mid cross vein. 



Larva. Length about --^%- inch; head light 

 or yellowish broy>^n, Avidest just behind the 

 black eyes ; antennae nearly straight, almost 

 cylindric, slightly darker at the somewhat 

 enlarged base and with a scanty tuft aris- 

 ing at the basal third. Labial plate broadly 

 triangular, with 25 fine teeth. Thorax, 

 lateral angles somewhat marked and each 

 bearing a group of compound, finely bar- 

 buled hairs. A similar group also occurs at the anterior angle 

 which is less sharply defined, and also on the dorsal surface. Hairs 

 of the body mostly simple, th^ose on the first and second abdominal 

 segments compound and weakly barbuled. Comb of the eighth ab- 

 -dominal segment consists of 14 to 16 scales, each having a some- 

 what spatulate base and terminated by a stout spine, at the base 

 of the latter on either side is a much smaller spine followed by a 

 series of still smaller, weaker ones. Anal segment, with a broad 

 dorsal plate extending nearly to the ventral line but not inclosing 

 the segment. Air tube is about two and one half times as long as 

 broiaid, tapering rather gradually to the apex, with two posterior 

 pecten, each consisting of about 18 spines closely placed together 

 and four others at a much greater distance. Each pecten tooth 

 is stout and with one or two denticulations; dorsal surface of 

 the air tube with a double row of hair tufts, each consisting of 

 about four tufts composed of a pair of weakly barbuled hairs. 



Life history and habits. This large species is a frequenter of 

 woodland pools in the vicinity of Albany, where it occurs in as- 

 sociation with C. canadensis, C. i m p i g e r , C. c a n t a n s 



