杨十斑吉丁虫飞行能力的测定

为了探究杨十斑吉丁虫的基本飞行能力,本试验利用飞行磨吊飞结合野外测定,探究了性别、光照对杨十斑吉丁虫飞行能力的影响并对杨十斑吉丁虫野外单次飞行距离和活动场所进行了研究.吊飞结果显示：雌、雄虫的平均飞行距离之间存在显著差异,平均飞行时间、平均最大飞行速度之间差异不显著,杨十斑吉丁虫个体之间飞行能力差别较大,其中,雌虫的平均飞行距离为2．6172 km,平均最大飞行速度为2．0108 km/h,平均飞行时间为1．7674 h；雄虫的平均飞行距离为2．1385 km,平均最大飞行速度为1．7801 km/h,平均飞行时间约为1．8732 h.个体飞行能力最强为雌虫,其飞行最远距离为5．2 km,飞行最大速度为2．91 km/h,最长飞行时间约为2．9 h.野外研究结果显示：杨十斑吉丁虫主要在树木的树干部位进行活动,单次飞行距离最远可达18．3 m.结果表明：杨十斑吉丁虫有较强的飞行能力,且在光照条件下杨十斑吉丁虫的飞行能力要显著高于黑暗条件下.

A Study on Flight Capacity of Melanophila picta Pallas

In order to explore the light capacity of Melanophila picta Pallas,the influences of its gender and light were studied by using the flight mill,and its single flight distance and activity places were anaG lyzed outdoors as well,in this paper.The results showed that there were significant differences in average flight distance between the female and male but there were no obvious differences in average flight duration and average maximum flight speed.The average flight distance,average maximum flight speed and average flight duration of the female reached 2.6172 km,2.0108 km/h and average duration was 1.7674 h,respecG tively,while the average flight distance of female was 2.1385 km,most flight speed was 1.7801 km/h and average flight time was 1.8732 h of the male.Female individuals had the stronger flight capacity,and their maximum flight distance,speed and duration were tested as 5.2 km,2.91 km/h and 2.9 h,respectively. The main activity palce of Melanophila picta Pallas was around the tree trunk,and single flight distance could be 18.3 m.It was presented that Melanophila picta Pallas had much stronger flight capacity in the white the sunlight than in the dark.