关键词: 骚扰阿蚊, 密度指数, 生态习性, 越冬态(期)

Abstract: In recent year the density of Armigeres subalbatus has been gradually increasing in Shanghai area. The index in density of mosquito in 1987 was 0.29/m² which increased in 1.06/m² by the 1989, and the constiteunt ratio of mosquito was 6.33% which rose up to 20.09% by the 1989. The mosquitoes would appear in May grow sharply in July, the peaks of density is in August to October, and then gradually decrease in November. It will disappear from December to next April in every year. After analysis 63 samples taken from local the result confirmed that the suitable place for their breeding is Human manure ponds and pig manure ponds where the amount of nitrogen of ammonia is 188.2mg/1 in an average, the contents of consumptive oxygen is 301.70mg/l in an average. The blood sucking addiction habit reveal that they would suck both human and domestic animal blood, but which one is prefer to them that will depent on the distance of the source of blood and its protected conditions. The activity of mosquitoes could be at 24 hours but the peak is at 4 hr.afternoon and at 8 to 12 hr.at night. Over-wintering stage is at 3 to 4 age's larva. From December to next April is overwintering stages.