340 



NEW YORK STATE MUSEUM 



The larva of this species so nearly resembles that of C . s y 1 - 

 vestris and C. impiger that it is difficult to separate 

 them. It may be distinguished from that of A. s m i t h i i 



Fig. 77 Labial plate of Aedes fuscus 



according to Johannsen by the four long, narrowly tapering blood 



gills instead of two. 



Larva. Length about -^\ inch. Head 

 brown ; antennae fuscous at the tip, light 

 brown at the base and with a scanty tuft 

 arising from before the middle; apically 

 there are four rather long bristles and a 

 small, conical process. Labial plate elon- 

 gated, triangular and with 25 rather fine 

 teeth, those near the apex being smaller 

 than the others. Hairs of the thorax com- 

 pound, weakly barbuled, those of the ab- 

 domen simple. Comb composed of a prac- 

 tically single row of 12 narrow scales, 

 each with a somewhat elliptic, finely 

 setose base and a stout apical spine. Air 

 tube slender, about three times as long as 

 broad, with double posterior pecten, each 

 consisting of about 13 closely set spines, 



with three flattened isolated ones beyond. Each spine bears a 



tooth near its base, Ana] plate covers the dorsum only of the 



Jast segment. 



Fig. 78 Air tube of A. 

 fuscus 



