142 THE MOSQUITOES OF NEW JERSEY 



tufts of four or five hairs eacli, following ones with two hairs to each 

 lateral tuft, diminishing in length posteriorly. Seventh and eighth seg- 

 ments white, with short tufts only; eighth with regular row of five or 

 six scales on each side; individual scales shaped as in Fig. XLVI. 

 Anal siphon dark brown, almost black, about twice as long as broad, 

 slightly dilated near base, valves also a little dilated so as to flare at tip. 

 Two rows of spines consist of five or six each, single spines not curved, 

 essentially like figure, though there is some variation. Ninth segment a 

 little longer than broad, same color as siphon. Ventral brush moderate, 

 with few small tufts below barred area. Double dorsal tuft short, each 

 part with one very long hair. Anal gills long and slender, tapering to 

 point, without obvious tracheae. 



HABITS or THE EAKLY STAGES 



The suggestion that the species winters in the egg stage is made be- 

 cause it appears constantly associated with canadensis and vexans, of 

 which this is true. 



The earliest actual collection date is July 29, 1903, when full grown 

 larvae and pupae were collected. From the pupae six males and four 

 females emerged July 30, and five females August 1. Some of the larvae 

 pupated July 31 and adults emerged August 3, a period of three days. 

 The latest collections were made September 30 at Livingston Park, and 

 adults from this lot were all out before the middle of October. 



From this record a continuous breeding is indicated, the number of 

 existing pools, determining the number of broods. Though there was an 

 abundance of rain near New Brunswick during the summer, the woods 

 were, nevertheless, unusually dry, a result of the very severe, continuous 

 winter which kept moisture out of the ground and allowed the water to 

 run off or to evaporate in the spring before the surface was in an ab- 

 sorbent condition. The result was that when rains did come they were 

 completely absorbed and not enough was in the ground at any time to 

 allow standing surface pools. 



Aedes atropalpus Coquillet 

 The Rock Pool Mosquito 



DISTRIBUTION AND CHARACTERIZATION 

 [Locally throughout eastern United States and is recorded from 

 Arizona and New Mexico. In New Jersey 113 females have been taken 

 in traps.] 



