冬天到了,蜻蜓去哪了?

2025-03-16 15:44:18
推荐回答(5个)
回答1:

冬天蜻蜒死了,但幼虫或卵可能钻到稀泥里过冬,来年春末就出来在水里捕食蚊子的幼虫,蜻蜓的稚虫要经过两三年才能羽化成虫变成蜻蜒

回答2:

留下了后代。。在水里。。蜻蜓点水、那是在产卵

回答3:

产完卵后便活不了多久了,它的幼虫寿命较长,成年后的任务就是繁殖,任务完成便会在不久的将来死去 所以冬天一到就都死了

回答4:

它们说要去冬眠啦~

回答5:

蜻蜓在冬天之前已经完成了整个生命周期。

蜻蜓属半变态发育,一生只有卵、稚虫和成虫3个阶段,成虫常通过蜻蜓点水的方式将卵产入水中,稚虫又称水虿,在水中捕食其它水生生物,待羽化前爬出水面,交配产卵完成生命周期。

蜻蜓喜欢潮湿的环境,所以一般在池塘或河边飞行,其幼虫(稚虫)也需要在水中发育。

主要分布在热带和亚热带地区,蜻蜓是食肉性昆虫。他们捕食苍蝇、蚊子、叶蝉、虻蠓类和小型蝶蛾类等多种农林牧业害虫。


扩展资料

蜻蜓点水是雌蜻蜓在产卵。蜻蜓通常在小河边、池塘里的水草上产卵,卵排出后在水草上孵化出的幼虫叫做“水虿”,水虿要在水里过很久的爬行生活,少则1年,多则七八年才能羽化成蜻蜓成虫。

羽化成成虫后,又短又胖的肚子变得越来越细长,原先叠在一起的翅膀也逐一展开,终于变成了像一只小飞机似的蜻蜓,可见“蜻蜓点水”是蜻蜓生活中的自然组成部分——产卵以繁殖后代。

稚虫在水中可以捕食孑孓或其他小型动物,有时同类也相残食。无论成虫还是幼虫均为肉食性,多食害虫。成虫除能大量捕食蚊、蝇外,有的还能捕食蝶、蛾、蜂等害虫,实为益虫。

参考资料来源:百度百科——蜻蜓

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