Traditional Culture Encyclopedia - The 24 Solar Terms - When did cicadas start to sing in the lunar calendar?
When did cicadas start to sing in the lunar calendar?
From the end of June, that is, from the summer, the larvae began to emerge into adults, and the newly emerged cicadas were green, and the longest life span was about 60 ~ 70 days. Female adults began to lay eggs in late July, and the peak of laying eggs was in early and middle August. Most of the eggs were laid on branches 4 ~ 5 mm thick. In summer, trees called loudly and their juice was sucked dry by acupuncture mouthparts. Larvae inhabit the soil and suck juice from the roots.
From June to July every year, pupae will become adults in just a few days, and then lay eggs. From the beginning of eggs to the process of nymphs living underground, until the last time they shell and become adults, they will make a scene in the trees. This period usually takes one to two years. Among them, in cicadas, their larvae are also called "nymphs".
Extended data:
Cicadas are mainly 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.
Cicada usually stays in the soil for several years or even more than ten years, such as three years, five years, and there will be 17 years. These numbers have one thing in common, they are all prime numbers. 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.
References:
Baidu encyclopedia _ cicada
Baidu Encyclopedia _ Great Summer
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