天府自然历丨“撞脸”蜻蜓的原始昆虫（2022年3月11日）
Damselfly: A primitive insect that "looks like" a dragonfly
圆鼓鼓的大眼睛，机翼造型的翅膀，纤细的身体——这些蜻蜓有的外形特征它都有，但它不是蜻蜓，它叫豆娘。
Big bulging eyes, wing-shaped wings, and slender bodies— an insect has all theappearance features that thedragonfly has. However, it is not a dragonfly. It is called damselfly.
蜻蜓和豆娘都属于自昆虫纲有翅亚纲蜻蜓目，但蜻蜓属于差翅亚目，而豆娘属于束翅亚目，这是一类比较原始的昆虫，中国约有650余种，约占世界蜻蜓目昆虫总数的百分之十。
Both dragonflies and damselflies are flying insects belonging to the order Odonata. However, the dragonfly belongs to the infraorder Anisoptera, while the damselfly belongs to the suborder Zygoptera, which is a relatively primitive class of insects. There are about 650 species in China. It accounts for 10% of the total number of dragonflies in the world.
成虫的身躯看起来十分纤弱，一副弱不禁风的样子，但豆娘是肉食性昆虫。它们擅长捕食空中的小飞虫，不过由于体型较小、飞行速度较慢，因此豆娘主要是以体型微小的蚊、蝇、蚜虫等昆虫为主食，偶尔也会发生大豆娘捕食小豆娘的情形。
Although the body of the adult damselflylooks very slender and frail, the damselfly is a carnivorous insect. They are good at preying on small flying insects in the air, but due to their small size and slow flight speed, the damselfly mainly feeds on tiny mosquitoes, flies, aphids and other insects. Occasionally, the damselfly will prey on the little damselfly.
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