天气预报 > 其他 > 面包虫成虫怎样分雌雄
面包虫成虫怎样分雌雄
更新时间: 2020-10-20 00:00:00  

面包虫为雌雄异体,至成虫期才具有繁殖能力。 成虫期雌雄易辨别,雌性虫体一般大于雄性虫体,但外表基本一样,雌性成虫尾部很尖,产卵器下垂,伸出甲壳外部,所以,它隔着网筛将卵产在麸皮或者其他饲料里。 也可通过蛹来进行鉴别,雌蛹乳状突粗大明显,突的末端较尖并向左右分开,呈“八”字形。雄蛹的乳状突短小微露,末端钝圆,不弯曲,基部合并。

关键词: 面包 成虫 怎样 雌雄

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