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异色瓢虫［Ｌｅｉｓａｘｙｒｉｄｉｓ（Ｐａｌａｓ）］对烟蚜［Ｍｙｚｕｓｐｅｒｓｉｃａｅ（Ｓｕｌｚｅｒ）］有较强的控制作用，其捕食量随着猎物密度的增加而增加，功能反应符合Ｈｏｌｉｎｇ－Ⅱ型方程；并得出成虫及四龄幼虫的功能反应数学模型；异色瓢虫个体间干扰作用也较强，其捕食率随自身密度的增加而降低。
Leisaxyridis (Palas) had stronger control effect on Myzus persicae (Myzuspersicae (Sulzer)], its predation amount increased with the increase of prey density, and the functional response accorded with Holing-Ⅱ type equation. Adult and fourth-instar larvae. The inter-individual interference was also stronger and the predation rate decreased with the increase of self-density.