MOSQUITOS OR CULICIDAE OF NEW YORK STATE 335 



but the stripe is not so well defined and the marking on the 

 abdomen differs. 



Description. The larva of this species, as described by Dr 

 Smith, has the head almost twice as broad as long, the antennae 

 are half as long as the head, almost uniform in thickness two 

 thirds from the base, then taper slightly to the tip where there 

 are four articulated spines and a stout, short segment. The 

 sparse tuft of hair is slightly beyond the middle. The air tube 

 is about four and one half times as long as its width at the base, 

 and tapers rather evenly to the tip. Each pecten is composed 

 of about 12 uniformly tapering spines, the latter with three 

 shaTp, well defined teeth near the base. The comb is com- 

 posed of from 8 to 10 flattened, somewhat diamond-shaped scales 

 arranged in a slightly curved row. Dr Smith states that this 

 larva can be at once recognized by its unusually long anal gills 

 and the apparent absence of a breathing tube. 



Life history and habits. The young of this species were met with 

 in a woodland pool and are remarkable because of their remaining 

 near the bottom. They were never observed in confinement to rise 

 voluntarily to the surface for air, and when disturbed they sail 

 rather than wriggle upward and immediately descend as soon as 

 quiet is restored. They are so inconspicuous and transparent that 

 a jar containing them would be set aside as empty unless closely 

 examined, and this in connection with their habit of hiding among 

 the leaves at the bottom of the pools renders them difficult to 

 secure. Pupae were met with by Dr Smith, July 29, and adults 

 appeared July 30 and 31, and also at various times during August. 

 Larvae were also obtained early in September, and one adult was 

 bred the 15th. There seems to be continuous breeding from the 

 latter part of July to the. end of September, and it may begin 

 earlier in the season. 



Culex triseriatus Say " 



PI. 10, 25, 46, 53, fig. 5, 1, 6, 5 respectively 



This mosquito has the anterior and mid tarsal claws toothed, 

 the posterior ones simple. It may be separated from C. aurifer 

 by the color of the scales on the side of the mesonotum, which are 

 white, while in C. aurifer they are golden yellow. 



