306 NEW YORK STATE MUSEUM 



Description. The egg has been described by Dr Dyar, as black 

 ellipitic with ends abruptly narrowed. They are deposited in 

 groups, adherent to the surface on which they are placed. The 

 full grown larva has a dark brown, nearly black head, the antennae 

 are slender, small, uniform, with the tuft at the middle of the joint 

 reduced to an inconspicuous hair. The air tube is short, not over 

 twice as long as broad, slightly tapered, with double posterior 

 pecten, a small tuft and several pecten teeth beyond the tuft. The 

 oomb consists of a long triangular patch of small scales about 

 five rows deep. Dr Dyar states that this larva resembles that of 

 0. canadensis, but the tube is shorter, the anal plate smaller, 

 and the anal finger-shaped processes contain conspicuous tracheae. 



Distribution. This species was described from specimens re- 

 ceived from Virginia, Maryland, Pennsylvania and New Hamp- 

 shire. 



Life history and habits. Dr Dyar has met with larvae in small 

 pools in the flat surface of a rock beside a stream on the side of 

 Mt Ossipee N. H., and he adds that it did not occur near Center 

 Harbor, where there were no rock pools. It was also found breed- 

 ing abundantly in water-filled potholes on the edge of the Potomac 

 river, above Plummers island Md., and was associated with C . 

 territans,asin New Hampshire. 



Culex dyari Ooq. 



PI. 10, 21, 35, 43, 54, 55, fig. 1, 4, 1, 4, 1, 4 respectively 



This mosquito has the tarsi ringed at the base, and simple claws, 

 according to Coquillett, which readily separates it -from others in 

 this group, unless itbeC.jamaicensis, from which it may 

 be distinguished in the same manner as C. sylvestris. 

 This form was taken by Dr Dyar, at Center Harbor N. H., and 

 it would not be surprising if it was also found in New York State. 



Description. This larva according to Dr Dyar has a rounded, 

 pale brown head and stout antennae, the tuft at the outer third 

 and the part beyond, smaller ; strongly inf uscated at tip, narrowly 

 so at base, the center of the joint broadly pale whitish. Air tube 

 about four times as long as broad, tapering rather abruptly 

 beyond the middle, the tip not tapered. Basal pecten small. 



