298 NETV YOEK STATE MUSEUM 



scale is oblong with setose sides, two long spines at the angles and 

 a ver-T long central process. The air tnbe is small, abont three 

 times as long as wide, with two cnrved spines at the apex and an 

 nnusuallv large tuft below the spines. Pecten consists of from 

 :fiYe to eight spines each bearing two to four very long, slender 

 teeth. The anal gills are twice as long as the siphon, taper to 

 almost a point and are well provided with tracheae. 



Habits. This species is abroad in Xew Jersey the lauer part of 

 Jnne. in July and early Angust. Mr W. P. Seal, who took the 

 larvae at Delair y. J., states that they are rare and have the habit 

 of remaining below the snrface and feeding at or near the bottom. 

 Dr Smith states that the larva has a peculiar habit of resting on 

 the bottom, back down, with the antennae pointing upward and 

 mouth brushes in constant motion. A single larva was also 

 received by Dr Smith from Mr Brakeley. who tcw^k it at Lahaway 



A'. J. 



Culex jamaicensis Theo. 



PI. U. eg. 2 



This mosquito may be separated from the closely allied C . 

 sylvestris by the shorter petiole of the submarginal cell, it 



Tig. 36 Labial plate of Culex jamaicensis. 

 with hair from ssLvae much more enlarged 



being one third or less than one third as long as the cell. In other 

 respects it agrees very much with the above named species. 



Description. The larva has been described by Dr Dyar, who 

 states that it has a round, flat head, narrow anteriorlv, the anten- 



