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美洲斑潜蝇ＬｉｒｉｏｍｙｚａｓａｔｉｖａｅＢｒａｎｃｈ．田间自然种群中，幼虫期的死亡率最高，１、２、３龄幼虫平均死亡率分别为４８．１４％、５０．８６％、７８．９７％，幼虫期被寄生蜂寄生的概率随龄期的增大而增高，从１龄的１．４４％上升到３龄的６０．８８％。应用微型昆虫飞行磨（Ｆｌｉｓｈｔｍｉｌｌ）计算机联机装置对不同日龄成虫的飞行能力进行了测试，结果表明：雌虫飞行能力随日龄的增大而增强，３日龄最大连续飞行的时间为８．８３分钟，距离为２７２．９３ｍ。雄虫以２日龄成虫飞行能力最强，最长的一次连续飞行时间可达２５．００分钟，距离为８８２．８８ｍ。
LiriomyzasativaeBranch. In the field natural population, the larval mortality was the highest, and the average mortality rates of 1,2,3 larvae were 48.14%, 50.86% and 78.97%, respectively. The probability of parasite parasitization was Increased from 1.44% at the first age to 60.88% at the third age. The flying ability of adults of different ages was tested by the Flishtmill computer on-line device. The results showed that the flight ability of the females increased with the increase of age, and the maximum continuous flight time of 3 days old was 8. 83 minutes, distance is 272.93m. Male 2-day-old adult flight ability of the strongest, the longest one continuous flight time of up to 25.00 minutes, the distance is 882.88m.