1922] Matheson and Shannon: Mosquito Records 161 



of interest is the complete emergence of A. stimidans and 

 excrucians at least two to three weeks earlier than A . fitchii, i. 

 e., the pupal period of the former species was at its height about 

 April 21, while the latter was on May 10. 



These three species proved vicious biters and were the most 

 troublesome, where they occurred, during the early spring 

 months and lasting well into July. 



Mansonia perturbans Walker. 



Mansonia perturbans is a mosquito of wide distribution. 

 However there are only two published records from New 

 York State — Rochester and Ithaca. The recorded material 

 Ithaca was collected by Comstock in 1891. The writers 

 have found only a single specimen in the Cornell collection 

 bearing an Ithaca label, but no date. During the past summer 

 this species has not been taken around Ithaca. On a trip 

 made to North Fairhaven on July 3-5, this species was met with 

 in large numbers. North Fairhaven lies on the shores of Lake 

 Ontario and is surrounded by large swampy areas, providing 

 ideal conditions for the development of this species. 



This species maintained its reputation of being a vicious 

 biter. It would bite freely in the woodlands during the day. 

 In the evening they became extremely annoying in and around 

 the house. Their attacks continued after dark, even after all 

 lights were extinguished. One of the writers was compelled 

 to change his sleeping place after 10:30 P. M. to a more pro- 

 tected room. This activity of the mosquito would indicate 

 that this species is not entirely crepuscular in feeding habits 

 as stated by Howard, Dyar and Knab. They also have a 

 mean habit of attacking low down, crawling up inside one's 

 trouser legs. It might be added that these experiences occurred 

 at an isolated farm house about two miles from the village. 



Swarming of the males was observed just at dusk, the 

 individuals being barely discernible. The swarm was seen at 

 the edge of a cattail pond, the height being from three to five 

 feet. The swarm contained about thirty individuals, of which 

 eight were captured. 



Anopheles quadrimaculatus Say. 



This species has always been supposed to be a common one 

 about Ithaca, breeding in large numbers in the marshy areas 



