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斑蝶特色
香鳞袋
有些雄性斑蝶(如青斑蝶和虎斑蝶)的翅膀上有香鳞袋。它们喜欢在吊裙草(Crotalaria retusa)上吸食汁液,将汁液中的化学物质转化,制造费洛蒙,储存在香鳞袋之内,散发香气,以吸引雌蝶。我们亦可借此观察到蝴蝶的性别。
![](https://static.wixstatic.com/media/852894_962c3e9601254ef6a7f4e428bf30e2f9~mv2.jpg/v1/fit/w_345,h_345,q_75/852894_962c3e9601254ef6a7f4e428bf30e2f9~mv2.jpg)
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雄性斑蝶在吸食吊裙草汁液:
![](https://static.wixstatic.com/media/fb5f68_9fd1ed6eb9cf49e1a214d2f383b0c0e3f000.jpg/v1/fill/w_115,h_65,al_c,q_80,usm_0.66_1.00_0.01,blur_2,enc_auto/fb5f68_9fd1ed6eb9cf49e1a214d2f383b0c0e3f000.jpg)
毛笔器
雄性斑蝶腹部具有一对黄色球状构造,此构造称为「毛笔器」,能够伸缩自如,用来散发性费洛蒙吸引雌蝶,作用等同香鳞袋。除了求偶,当雄性斑蝶被天敌捕捉时,也会翻出毛笔器以吓阻敌人,以增加逃生的机会。
![](https://static.wixstatic.com/media/852894_992da14b9b954324a08309cb9e708613~mv2.jpg/v1/fit/w_350,h_350,q_75/852894_992da14b9b954324a08309cb9e708613~mv2.jpg)
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警戒色
斑蝶幼虫有一身鲜艳的颜色,让捕猎者知道它们是有毒的,不敢捕食。斑蝶成虫的警戒色分为两类,包括强烈的对比色和金属色的折光。
![](https://static.wixstatic.com/media/852894_44cb76f662a84a5eb81713ec4fde87f4~mv2.jpg/v1/fit/w_365,h_364,q_75/852894_44cb76f662a84a5eb81713ec4fde87f4~mv2.jpg)
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