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飞龙：蜻蜓

飞龙：蜻蜓. 中科院上海昆虫博物馆 殷海生 馆长. 蜻蜓. 1、属于昆虫纲蜻蜓目Odonata，古老的昆虫之一 2、分为2大类，蜻蜓和色蟌[cōng] （俗称：豆娘） 3、翅发达，前、后翅等长而狭；头部可灵活转动，触角极短，复眼发达，单眼3个，咀嚼式口器强大。成虫腹部细长，圆筒形或扁形 4、一生分为卵、稚虫和成虫三个 阶段（不完全变态）。成虫产卵于淡水中，稚虫生活于水中，称为水虿（chài）。稚虫与成虫都捕食其他害虫或小型动物，有益于人类 5、全世界已知有5000余种，广布于全球，尤以温暖地区为多，我国已知400多种. 蜻蜓化石. 蜻蜓的触角. 蜻蜓的眼睛.

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飞龙：蜻蜓

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  1. 飞龙：蜻蜓 中科院上海昆虫博物馆 殷海生 馆长

  2. 蜻蜓 • 1、属于昆虫纲蜻蜓目Odonata，古老的昆虫之一 • 2、分为2大类，蜻蜓和色蟌[cōng] （俗称：豆娘） • 3、翅发达，前、后翅等长而狭；头部可灵活转动，触角极短，复眼发达，单眼3个，咀嚼式口器强大。成虫腹部细长，圆筒形或扁形 • 4、一生分为卵、稚虫和成虫三个 阶段（不完全变态）。成虫产卵于淡水中，稚虫生活于水中，称为水虿（chài）。稚虫与成虫都捕食其他害虫或小型动物，有益于人类 • 5、全世界已知有5000余种，广布于全球，尤以温暖地区为多，我国已知400多种

  3. 蜻蜓化石

  4. 蜻蜓的触角

  5. 蜻蜓的眼睛 蜻 蜓 豆 娘

  6. 蜻蜓的嘴巴

  7. 蜻蜓的胸部

  8. 蜻蜓的翅膀 豆娘 蜻蜓

  9. 蜻蜓的颜色

  10. 蜻蜓的交尾

  11. 蜻蜓的产卵

  12. 蜻蜓的飞行

  13. 蜻蜓的天敌

  14. 蜻蜓的稚虫

  15. 稚虫的嘴巴

  16. 稚虫的取食

  17. 蜻蜓的羽化

  18. 谢 谢！

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