我们在观察菜粉蝶幼虫龄期时偶尔发现其雌雄的不同特征,经室内饲养羽化验证,鉴别雌雄完全正确。一、幼虫的雌雄鉴别幼虫雌雄鉴别主要看其腹足第二对的腹背中央有无并列的等号式带(=)。有等号式带的是雄虫,没等号式带的是雌虫。 When we observe the cabbage butterfly larval instar and occasionally found that the different characteristics of its male and female, fecundity of indoor feeding verified to identify male and female completely correct. First, the male and female larvae identification of male and female larvae to identify mainly depends on the second pair of abdominal gastroparem with or without the central parity with equal (=). Equal sign type is male, not equal sign with the female.