AQUATIC INSECTS IN NEW YORK STATE 425 



Imagines 



These two species may be distinguished as follows: 



With cross bauds of yellowish scales at the bases 



of the abdominal segments A. f u s c u s O. S, 



Without these bands A. s m i t h i i Coquillett 



Larvae 



With four anal blood gills fuscus 



With two anal blood gills smithii 



Aedes fuscus Osten Sacken 



The larva is described by Dr Dyar in the Journal of the New 

 York Entomological Society for 1902, page 197. This larva 

 differs from that of A. smithii in having four long narrowly taper- 

 pointed blood gills instead of but two. The antenna has a tuft 

 of hair a little before the middle; the breathing tube is about 

 three times as long as wide; its spines are single toothed. The 

 ninth segment has tufts before the barred area; the lateral 

 combs of the eighth segment consist of a single irregular row of 

 rather course spines. 



" The pupa is normal, its air tube cylindrical, slightly bent 

 but not widened into funnel shape." 



Aedes smithii Coquillett 

 Plate 47, fig. 1-6 



The adult is described by Coquillett in the Canadian Ento- 

 mologist, 1901. Of the life history Prof. J. B. Smith has discov- 

 ered the following :i 



'' The female Aedes lay their eggs in the newest leaves of 

 the pitcher plants (Sarracenia), and do not always wait for 

 water to collect in them. Of the specimens of larvae which he 

 had taken during the winter the last one changed to the pupal 

 state about Sep. 9; thus being in a larval state since the preced- 

 ing October. He thought that there were about three broods, 

 and that the different specimens vary in their time of appearing, 

 which seems to give one continuous season." 



The larva has already been well described by Dr Dj-ar, in 

 New York Entomological Society Journal, December 1901, page 

 178, plate 10, figure 1. It greatly resembles the larva of 

 Culex, this species differing from the known members of that 



lEnt. News, 1901. p.254. See a?so N. Y. Ent. Soc. Jour. March 1902. 



