名古屋市郊外におけるチカイエカの発生について
1974 年 25 巻 2 号 p. 105-109
詳細
1974 年 25 巻 2 号 p. 105-109
A series of field investigations was made on the imaginal mosquito populations occurring in a suburban area of Nagoya City, central Japan. 1) During the period from May 1972 to May 1973,an investigation was made on the seasonal fluctuation of the imaginal masquitoes. As a result, most (99.6%) of the adult mosquitoes collected with light traps were Culex pipiens group. 2) Discriminant function was applied to the identification of the two house mosquito biotypes, or autogenous Culex pipiens molestus and anautogenous C. p. pallens. As a result, 66.4% of the males and 75.4% of the females in the collections were regarded as C. p. molestus. 3) A breeding place of C. p. molestus was found to be the final settling tank in sewage treatment plant adjacent to the area. Female mosquitoes reared from larvae and pupae collected at the tank were tested for the presence of autogenecity, and 96% of them proved autogenous.
