目的调查蚋叮咬的原因,为防治蚋提供科学依据。方法运用流行病学方法询问病史及进行现场调查;2016年6月8日采用人诱停落法捕获昆虫并对其进行形态学鉴定。结果该叮人昆虫经鉴定为双翅目蚋;蓝莓园附近的稻田是蚋的孳生场所,人工停落法监测5 min捕获13只;在蚋的孳生场所,11人因暴露下肢皮肤而全部被叮咬;主要叮咬部位是小腿、脚踝和足背,表现为剧烈瘙痒、疼痛和红肿,2周左右症状基本消失;叮咬3~20处,下肢皮肤裸露越多,叮咬部位越多;当地居民证实有蚋存在。结论丽水市庆元县境内有吸血蚋分布;该事件为在蚋孳生场所职工暴露皮肤被叮咬引起;应加强宣传教育,做好防护,游玩和劳作时避开蚋的活动高峰期;加强蚋种群、密度、季节消长、分布及病原体携带情况等的监测,制定综合防治措施。 Objective To investigate the causes of bites and provide a scientific basis for prevention and treatment. Methods Epidemiological methods were used to inquire the medical history and carry out on-site investigation. On June 8, 2016, the insects were captured and identified by morphological identification using the trapping and stopping method. Results The bite insect was identified as Diptera 蚋. The rice field around Blueberry Park was the breeding place of 蚋, which was captured by artificial drop method for 5 min. In 蚋 breeding place, 11 were exposed by the skin of lower limbs Bites; the main bite site is the lower leg, ankle and foot dorsum, manifested as severe itching, pain and swelling, symptoms disappeared after about 2 weeks; bites 3 to 20, lower limb skin exposed more bites more; local residents confirmed蚋 exist. Conclusions There is a distribution of sucking blood in Qingyuan County, Lishui City. The incident is caused by bites of workers’ exposed skin in the breeding ground. Publicity and education should be stepped up, and the peak of activities should be avoided during the protection, play and work. , Density, seasonal fluctuation, distribution and the carrying status of pathogens and other monitoring, formulate comprehensive prevention and control measures.