德州市地处鲁西北,为黄河冲积平原,属暖温季风气候,春季干燥多风,夏季炎热多雨、年平均气温12.3～13.5℃,7月份最高气温在40℃以上,年症均降水量为543.1～638.4mm,多集中在7、8月份,雨季易积水,年平均相对湿度为60%,城区内有多处湖泊,其中欣湖面积达222500m~2。为了解城区内蚊虫组成、季节消长、密度,我们于1995～1996年进行了调查,现将结果报告如下:1调查方法 Dezhou is located in the northwest of Shandong and belongs to the alluvial plain of the Yellow River. It belongs to the warm and warm monsoon climate. The spring is dry and windy. The summer is hot and rainy. The annual average temperature is 12.3 to 13.5 ℃. The highest temperature in July is above 40 ℃ and the average annual precipitation is 543.1 ~ 638.4mm, mostly concentrated in July and August, the rainy season is prone to accumulate water with an annual average relative humidity of 60%. There are several lakes in the urban area, of which Xinhu has an area of ​​222500m ~ 2. In order to understand the city mosquito composition, seasonal growth and density, we conducted a survey from 1995 to 1996, the results are reported as follows: 1 survey method