赤松毛虫(Dendrolimus spec—tabilis Butler)是山东松树的严重害虫之一。过去在测报此害虫时,是通过性比掌握其发生量的,一般要等到幼虫发育至蛹期,才能根据蛹体末端的形态结构,确定雌、雄性比。这在时间和操作上都有种种不便。据前人报道,鳞翅目夜蛾科、凤蝶科、家蚕蛾科的多种幼虫都作了性别鉴 Dendrolimus spec-tabilis Butler is one of the serious pests of pine in Shandong. In the past in the measurement of this pest, is to control their occurrence by sexual than the general until the larvae to pupal stage, in accordance with the morphological structure of the end of the pupa to determine the female and male ratio. This is inconvenient both in time and in operation. According to previous reports, Lepidoptera Noctuidae, Papilionidae, many families of silkworm moths have made a gender discrimination Kam