关键词: 蝇密度, 季节消长, 滋生环境, 气象因素

Abstract: This paper reported the observations on the composition and distribution of synanthroPic flies and its seasonal variation from l987 to 1993 in Hubei province.The results indicated that: the comoposition rate for Chrysomyia megacephala、 Lucillia sericata 、 thesca domestica vicina was 39.46% 、30 .49% 、 11.8O% 、respectively.The peak periods of population density lasted from June to August.of the five areas with synanthropic flies distributed, the rubbish heap has the highest density, then the meat processing factory,food and beverage service、 processing factory and residential area in order.The density of fies was related with meterologica condition and dysentery incidence obviously.