140 ENTOMOLOGICAL SOCIETY 



Dr. Dyar then read the following paper : 



NOTES ON MOSQUITOES IN NEW HAMPSHIRE. 

 By HARRISON G. DYAR. 



These observations were made at Center Harbor, on Lake 

 Winnepesaukee in the hilly part of New Hampshire, where I 

 spent most of the summer of 1902. The lake has an altitude of 

 500 feet above the sea and is a large body of clear, cold water. 

 The land surrounding it is very hilly, almost-mountainous, sandy 

 for the most part, with many rocks and boulders. A consider 

 able part of the country is* forested, sheltering some spring pools 

 and marshes. Other marshy places occur at the edges of the 

 lake and in the lower, partly cleared woods. There are no 

 streams in the immediate vicinity. 



Mosquitoes are not usually abundant. In fact this is one of 

 the places described as "free from mosquitoes and malaria." 

 However, in 1902 mosquitoes were abundant and troublesome, 

 but only for about a month, from the middle of May to the mid 

 dle of June, as I am informed. I reached Center Harbor on 

 June 2oth. At that time only an occasional mosquito was seen 

 about the house or in any open space, though in the woods they 

 were still not uncommon. The commonest species was Culcx 

 canadensis and next to that Culex reptans. That is at the time 

 of my arfival. Later C. reptans gradually disappeared, being 

 replaced in the same woods by C. triseriatus, which, however, 

 did not become common. The other species were rare. Culex 

 cantans was not infrequent in certain localities at the end of 

 July. Culex pipiens did not occur. Mr. Coquillett at first identi 

 fied two captured males as of this species, but a re-examination 

 corrected the determination. Rain-water barrels and other 

 likely places remained free from "wrigglers" all summer. 

 Anopheles occurred, in two species, but not very commonly. 



Besides the collections made at Center Harbor, one day was 

 spent at Durham, N. H., which resulted in adding two species 

 to the list, C. sollicitans and C. pipiens. The latter was 

 present at Durham in its usual abundance, and larvae were found 

 in several places. Durham is situated at the head of tide water 

 in low, nearly level farming land. It is seventy-five miles from 

 Center Harbor in a straight line. 



Anopheles punctipennis Say. 



Larvas occurred in a rain-water puddle by the side of the road, 

 but few of them matured, as the puddle dried, owing to the 

 sandy soil. Other larvae were taken in pools containing algae, 

 in low rocky islands in the lake, from a marshy pool of consider- 



