How does a cicada spend its life from birth to death?

The life of a cicada: it goes through three different stages: egg, larva and adult. The eggs are laid on the tree, the larvae live underground, and the adults return to the tree.

After the cicada mates, the male completes his mission and dies soon after.

The female cicada begins to lay eggs, it uses a pointed ovipositor to prick small holes in the branches, and the thorns lay four to eight grains at a time, and dozens of holes are often pierced on a branch, and then the female cicada does not eat or drink, and dies quickly. The eggs overwinter in the branches of the tree, and the larvae hatch the following summer, with the help of the temperature of the sun.

Habits

The larvae of cicadas live in the soil and have a pair of strong digging forefeet. The sap of plant roots is sucked by the piercing and sucking mouthparts to weaken the tree, make the branches die, and affect the growth of the tree. Usually stay in the soil for a few years or even more than ten years, such as 3 years, 5 years, and 17 years, these numbers have one thing in common, they are all prime numbers.

This is because there are very few factors in prime numbers, and when they drill out of the soil, they can prevent them from drilling out with other cicadas and competing for territory and food. When it is about to be feathered, it burrows out of the surface at dusk and at night, climbs on a tree, and then grabs the bark of the tree to molt and feather.

When the cicada chrysalis. When a black crack appears on the back, the molting process begins, the head comes out first, then the green body and folded wings are revealed, and it stays for a moment to harden the wings and darken the color, and then it begins to take off.

The whole process takes about an hour. At the end of June, the larvae begin to emerge into adults, and the newly emerged cicadas are green and have a maximum lifespan of about 60 to 70 days. In late July, the female adults begin to lay eggs, and the peak oviposition is in early and mid-August, and the eggs are mostly laid on branches with a thickness of 4 to 5 mm.

In summer, they make loud noises in the trees, suck the sap with a needle pricking mouthpiece, and the larvae inhabit the soil and suck the sap from the roots, which is harmful to the trees.

The small larva hatches from the eggs, stays on the branches, the autumn wind blows it to the ground, as soon as it reaches the ground, it immediately looks for soft soil and drills down, drills to the roots, sucks the sap of the roots to live, at least two or three years, more than ten years, from the larvae to the adults through five molts, four of which are underground, and the last time, is to drill out of the soil and climb to the tree to shed the dry light yellow shell (this is the cicada shell) before becoming an adult. It can be seen that cicadas are insects that cannot be seen, and although they have a long lifespan, they rarely live in the sun, and spend almost their entire lives in the dark, which is a pity.

Not long, hehe.

The whole process of cicadas from birth to death is:

1. Cicada eggs:

Cicadas will turn from pupae to adults in June and July every year and then lay eggs in just a few days, eggs in late May to early June of the second year for the peak period of incubation, late June hatching activities are over, mostly hatched in the afternoon during the day, accounting for about 80%, less hatching at night, about 20%, the egg period is close to 300 days.

2. Larvae:

The larvae of the cicada live in the soil, have a pair of strong digging forefeet, suck the sap at the roots of the host plant, are less active, usually stay in the soil for several years or even more than ten years, after the temperature drops in the autumn, they burrow into the deep soil layer for wintering, and then migrate upward to the roots of the tree after the spring is warm, and the nymphs in the soil in May of the year.

The largest number of them. 3. Feathering:

After the cicada completes the whole life process of the nymph in the soil, the mature nymph burrows out of the soil from late May to mid-to-late August, crawls to the branches of shrubs, weeds, stems, etc., fixes itself on the bark branches and leaves with its claws and the thorns of its forefeet, and molts and feathers into adults.

4. Adult:

Usually mid-June to mid-July is the peak period of adult appearance, early October is the end stage, about 20 days after the adult emergence, the tail lays eggs, the eggs begin to lay in late June, the end of June to the end of August is the peak period of adult oviposition, the end of September to early October is the end of oviposition, and the final period is early November, after laying eggs, the adult will die, and the eggs will begin to hatch into the next life cycle.

The cicada's eggs are laid on the tree, and the eggs hatch into larvae in the spring and summer of the following year. The newly hatched larvae crawl down the trunk of the tree to the ground or fall to the ground, and then find loose soil to burrow into the ground, where the larvae suck the sap from the roots of the tree with their piercing-suction mouthparts. When the larvae grow up, they crawl out of the ground, shed their shells, and when their wings harden, the male sings on the branches

Got it", mating with the female cicada. Cicadas die shortly after mating and laying eggs.

The cicada is a completely mutant insect, and its life goes through three stages: larva, cocoon, and adult. It goes through 7 molts in its lifetime, and after the adult copulates, the male dies first, and the female dies after laying eggs. Spring cicadas to the end of the dead silk This poem is not right, after the spring cicada is exhausted, it will not die Ou.

In fact, after the cicada climbs from the ground to the tree to form a flying adult, it does not die after 7 days, but can survive for about 1 to 2 months, and will die after completing the mating process and reproduction with the opposite sex.

When the cicada is still a larva, it will live in the soil for 2 to 3 years, some for about 5 or 6 years, and some for more than ten years. Living in the soil is mainly to protect themselves from natural predators such as birds and rats in nature, and during the dark time in the soil for many years, the larvae of the cicadas will feed on the sap in the roots of the tree and gradually grow up, and when it comes to the next step of development, they will emerge from the soil, and their image is what people call the monkey. Knowing that monkeys are a delicacy for both birds and humans, the cicadas chose the night when the birds were asleep when they were unearthed, so they avoided the natural enemies of birds, but they could not escape the poisonous hands of humans.

Gluttonous people use flashlights at night to look for monkeys everywhere under the branches of trees, in order to satisfy their appetites.

If the cicada is lucky enough to escape the poisonous hands of birds and humans, the monkey will climb to the branch of the tree to shed the golden cicada's shell, that is, to break a hole in its back, and then slowly crawl out of the hole on its back. After learning that the adults crawled out, they were very weak at first and did not move much, but after a few hours, their bodies adapted, their wings became stiffer, and they were able to fly before dawn. After dawn, people can only find that there is an extra Zhihusk on the tree, which is a kind of Chinese medicinal material, and people pick it up and collect it, and sell it to pharmacies after more, which is also regarded as an extra income.

The offspring know that there is a month of survival after the progeny, during which the male cicada will chirp desperately, the female cicada will come to mate with the male cicada after hearing it, and after the mating is completed, the male cicada will look for other females until finally die. The female cicada chooses the most tender branch, punches holes in it, lays her eggs in it, and waits for death.

Because this is the law of natural formation of cicadas after long-term evolution, they live underground for a long time, and then come out to metamorphose, and can only live for seven days.

After the cicada climbs from the ground to the tree and transforms into an adult, it does not die in 7 days, but can live on the tree for a month or two, and it comes out to reproduce offspring, and after completing its task, it will die.