郴州市登革热媒介伊蚊种类与季节消长调查研究

目的调查了解郴州市登革热媒介伊蚊种类与季节消长。方法采用诱蚊灯诱蚊法对居民区、公园、医院的蚊虫进行监测，并对监测结果进行分析。结果主要调查到5种蚊虫，分别为淡色库蚊、三带喙库蚊、白纹伊蚊、埃及伊蚊和中华按蚊，其中淡色库蚊为优势种，占捕获总数43．79％。从生态观察点共捕获2263只蚊虫，雌雄比例为2．73：1。平均密度为3．49只／（灯·h），不同环境蚊密度为公园〉医院〉居民区。密度呈单峰曲线，7月下旬密度最高，达到7．67只／（灯·h）。结论初步掌握了郴州市蚊虫的种类与季节消长，为防治工作提供了科学依据。

Investigation on species and seasonal change of mosquitoes in Chenzhou city

Objective To investigate the species and seasonal fluctuation of mosquitoes in Chenzhou city in Hunan Province. Methods Using light trap method to survey mosquitoes in habitats of communities, gardens, hospitals in 2010 and analyzing monitoring data. Results Five major species were found, Culex pipiens pallens, C. tritaeniorhynchus, Aedes albopictus, Aedes aegypti and Anopheles sinensis. Culex pipiens pallens was the dominant species, accounted for 43.79 %. A total of 2263 mosquitoes were captured. The ratio of male and fe- male was 2.73 ： 1. Mosquitoes density index was 3.49 pieces per lamp for every hour, and the habitats in descending order of the mosquito density were parks, hospitals , residential areas. The seasonal fluctuation curve of mosquito density appeared single peak, and the peak was in July. The density index was 7.67 pieces per lamp for every hour. Conclusion The study provides scientific gist for preventing and controlling mosquitoes and makes the species and seasonal fluctuation of mosquitoes in Chenzhou city to be known.