84 THE MOSQUITOES OF NEW JERSEY 



and disappeared completely at a distance of 150 feet from it. The most 

 diligent search, however, failed to disclose a single larva of this species 

 — all having apparently reached maturity. From a number of adults 

 which were captured and confined in breeding jars, a single egg boat 

 was secured on September 10. This hatched two days later, but the re- 

 sulting larvae died a week after emerging, because they had not found 

 the conditions suited to their existence. Yet the pails in which they were 

 kept were provided with earth, stones, decayed wood, and pieces of sod. 

 We had now, however, associated the adults with a particular kind of 

 breeding area, and were able to recall similar water areas at all of the 

 points where adults had been taken. Furthermore, an egg boat could not 

 pass the winter in that stage and if the adults hibernated, Mr. Brakeley 

 would surely have found them in his cellar or barn collecting during the 

 winter ; so the only alternative was that they must hibernate as larvae. 

 Therefore, we concluded, that search in the late fall or early spring 

 would most likely secure them. Unfortunately the pool in the Great 

 Piece meadow dried out in the fall of 1906, so the hope of obtaining 

 larvae from that source was destroyed. However, the field of search had 

 narrowed down from the entire area of New Jersey, to small permanent 

 bodies of water with plenty of vegetation. 



The first record for 1907 came from Lahaway on June 17, where sev- 

 eral adults were taken. Later they were found in large numbers at 

 Trenton, where in evenings spent at "White City Park" from twenty- 

 two to thirty were taken at single sittings between July 30 and Au- 

 gust 8. Other adults were taken in small numbers at Grantwood, West- 

 ville, Paterson, and New Brunswick. At Springdale and Culver's Lake 

 they occurred very commonly on July 10, in company with the C. au- 

 rifer, and at Lahaway they were present in such enormous numbers that 

 on one occasion Mr. Brakeley took 300 examples in fifty minutes. These 

 were collected at the corner of a large lily pond just as night was fall- 

 ing. Mr. Brakeley believes that the species is arboreal in the daytime, 

 descending only as dusk comes on, and he bases his belief on the fact 

 that in all his wanderings at Lahaway he has never taken an adult dur- 

 ing the day. However, I took a few specimens there on August 1, but 

 the number was as nothing compared with the hordes which are present 

 in the evening. It is interesting to note also that while they appear in 

 swarms only at dusk, they disappear or at least materially decrease in 

 numbers soon after dark and still later fall off almost entirely. At Cul- 

 ver's Lake, Springdale, and in the Great Piece meadows they were com- 

 mon at all times during the day and did not hesitate to bite. 



At Lahaway I searched for larvae in certain areas. The first was a 



