In summer, trees will cry loudly and suck sap with needles. Larvae inhabit the soil and suck juice from the roots, which is harmful to trees. There are also different kinds of cicadas with similar shapes and different colors. Cicada has three insensitive eye spots between its eyes and a simple supporting tubule on its wings. The soprano of the cicada family is a kind of cicada called "double drummer"
There are large ring-shaped vocal organs on both sides of its body, and a disk that can be opened and closed inside and outside is in the middle of its body. The opening and closing speed of the disc is very fast, which is also the reason why cicadas tremble. Cicada is a tireless singer, singing loudly for happiness.
Distribution range:
Distributed in temperate and tropical regions, inhabiting deserts, grasslands and forests. In addition to the species of Lepidoptera, there are periodic cicadas, which appear in midsummer every year. The most famous periodic cicadas are 17-year cicada and 13-year cicada, also called prime cicada. Because the life cycle is a prime number, it will not meet the natural enemies encountered by the previous generation.
Periodic cicadas appear at regular intervals in a certain area, and dozens to hundreds of dark brown cicada larvae emerge from the soil together, which is very spectacular. Some species are easy to distinguish in singing, behavior and morphology.