The life span of cicadas is not only four years. There are great differences among different cicadas, some can only live for 2-3 years, and some can even live for 17 years. Moreover, after the cicada is unearthed, it can not only live for seven days, but also varies from cicada to cicada. Cicada is an oviparous animal. Since cicadas are active in trees after adults, they usually live by sucking the sap of trees. As their adult lives for a short time (generally less than 15 days), after their adult, the male golden cicada begins to "sing", using the tympanic membrane of the abdomen to vibrate, with the aim of attracting the opposite sex and quickly reproducing. Of course, the female does not have a tympanic membrane, so the female golden cicada will not scream.

The fertilized female cicada will lay eggs immediately, and the place to lay eggs is the branch. The female cicada has a spiny ovipositor. After fertilization, she will use her ovipositor to punch holes in the branches and then discharge the eggs. Because a cicada can lay 300-500 eggs, it needs to punch many holes in the branches. So, the egg-laying branch died.