1982年5～10月间,在珍宝岛地区进行的蚊虫昼夜刺叮活动观察中,发现刺扰伊蚊昼夜出现晨、昏两个高峰,而一般昏峰大于晨峰。随着季节的变化,晨、昏峰出现的时间也随之不同,6月下旬到9月上旬,刺扰伊蚊昼夜刺叮活动晨峰推迟5小时,昏峰提前4小时。但刺扰伊蚊刺叮活动高峰一般出现在日出前后和日没前后1～2小时左右。 From May to October 1982, mosquitoes carried mosquitoes in the area of ​​Zhenbao Island were observed during day and night, and the morning and evening peaks of the mosquito were found in the area of ​​day and night. As the seasons change, the morning and evening peaks appear at different times. From late June to early September, the morning peak of the night-time pricker-eared mosquitoes is delayed by 5 hours and the peak hour 4 hours earlier. However, the peak of the prickly mosquito bite activity usually occurs around the sun and around 1 to 2 hours before and after sunrise.