蝉从产卵到成虫的生长过程
1、成年蝉在夏季进行交配和产卵；雌性蝉会选择将卵产在向阳的当年生的树枝上。
![](https://wkrtcs.bdimg.com/rtcs/image?w=369.60&md5sum=1dcf2c51d4dbd3d803c7578987d2c5a4&sign=fb61446287&rtcs_flag=2&rtcs_ver=4&l=webapp&bucketNum=392&ipr={"t":"img","r":"r_7","w":"369.60","h":"141.87","dataType":"jpg","c":"word/media/image1.jpg","imgOriW":380,"imgOriH":155})
2、 蝉的卵在树上孵化后，会掉落到地上。
![](https://wkrtcs.bdimg.com/rtcs/image?w=288.00&md5sum=1dcf2c51d4dbd3d803c7578987d2c5a4&sign=fb61446287&rtcs_flag=2&rtcs_ver=4&l=webapp&bucketNum=392&ipr={"t":"img","r":"r_14","w":"288.00","h":"162.20","dataType":"jpg","c":"word/media/image3.jpg","imgOriW":600,"imgOriH":600})
3、 掉落到地上的幼蝉（蝉的幼虫），会选择较为柔软的土壤进行挖洞，继而进入地下，以树根的汁液为食，一般在地下生长3年。
![](https://wkrtcs.bdimg.com/rtcs/image?w=198.39&md5sum=1dcf2c51d4dbd3d803c7578987d2c5a4&sign=fb61446287&rtcs_flag=2&rtcs_ver=4&l=webapp&bucketNum=392&ipr={"t":"img","r":"r_14","w":"198.39","h":"177.31","dataType":"png","c":"word/media/image4_1.png","imgOriW":338,"imgOriH":480})
4、 3年后，地下的幼虫长大，会在夏季的傍晚从地下钻出，在附近找一棵直立大树爬上去。
![](https://wkrtcs.bdimg.com/rtcs/image?w=221.20&md5sum=1dcf2c51d4dbd3d803c7578987d2c5a4&sign=fb61446287&rtcs_flag=2&rtcs_ver=4&l=webapp&bucketNum=392&ipr={"t":"img","r":"r_14","w":"221.20","h":"175.47","dataType":"jpg","c":"word/media/image5.jpg","imgOriW":470,"imgOriH":444})
5、 幼虫爬上树后2-3小时内，会进行脱壳，即破壳成蝉；脱壳后的蝉会长出翅膀，具备飞行能力。
![](https://wkrtcs.bdimg.com/rtcs/image?w=187.07&md5sum=1dcf2c51d4dbd3d803c7578987d2c5a4&sign=fb61446287&rtcs_flag=2&rtcs_ver=4&l=webapp&bucketNum=392&ipr={"t":"img","r":"r_14","w":"187.07","h":"218.40","dataType":"jpg","c":"word/media/image7.jpg","imgOriW":500,"imgOriH":750})
6、 生出翅膀的蝉，会寻找枝叶比较茂盛的树枝作为栖息地，以树枝的汁液为食，雌性蝉交配后，雌蝉会将卵产在向阳的当年生树枝上。
![](https://wkrtcs.bdimg.com/rtcs/image?w=300.00&md5sum=1dcf2c51d4dbd3d803c7578987d2c5a4&sign=fb61446287&rtcs_flag=2&rtcs_ver=4&l=webapp&bucketNum=392&ipr={"t":"img","r":"r_14","w":"300.00","h":"225.00","dataType":"jpg","c":"word/media/image10.jpg","imgOriW":300,"imgOriH":225})
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