CATDOLL : CATDOLL: What does "Cicada Excellent Eight Years" mean?

1. What does Chanyou Eight Years mean?

According to some data, the life span of cicadas is 8 years. Cicadas climb trees and sing loudly in the summer, and hibernate underground in other seasons.

2. How many days can a cicada live?

Cicada larvae can live underground for up to a dozen years. Once they begin to transform into adults, they will not live long, with the longest lifespan being about 60 to 70 days.

Cicadas are cold in nature and fragrant in taste. They have the functions of dispersing wind and clearing the lungs, relieving fever and calming the nerves. Cicadas are nutritious and delicious, and have become a fashionable delicacy. They can be fried before the larvae turn into cicadas, or they can be marinated with edible salt and then fried.

Additional information:

Cicadas generally refer to cicadas. Several species of cicadas have been found in North America that only appear once every 13 or 17 years. The 13-year cicadas are mostly distributed in the southern United States, and the 17-year cicadas are mainly distributed in the northeastern United States. These cicadas appear strictly on time, which means that the larvae live in the soil for exactly 12 or 16 years, so they are also called "periodic cicadas."

Male cicadas can chirp. Their sound organs are in their abdominal muscles, like a big drum covered with an eardrum. The eardrum vibrates and makes sound. Since the singing muscles can contract and expand about 10,000 times per second, the space between the cover and the eardrum is empty, which can resonate, so their chirping sound is particularly loud.

Reference: Zhiliao-Baidu Encyclopedia

In fact, the life span of cicadas is relatively long in the insect family, because it stays in the soil for 7 years and completes all the development process in the soil. When we see it, it is already 7 years old. It comes out of the soil only to mate and reproduce the next generation. Once mating is completed, the male cicada dies. When the female cicada lays eggs in the soil, it also dies because it has completed its mission of coming out of the soil. But in our opinion, it can only live about a week on the ground.

Cicadas are also called cicadas. Different species of cicadas have different life cycles. The life cycle of French cicadas is mostly 4 years, while there are cicadas in North America that can live up to 17 years. The life span of Chinese cicadas is mostly between 3 and 7 years, nearly half of which are 5 years, and a few can live for 8 to 9 years. Biologists generally believe that cicadas are the longest-lived insects in the world. The life span of cicadas is like this: the pregnant female cicada uses the ovipositor on the tail to make holes in the branches, penetrate the wood and reach the pith, and lay several eggs in each small hole. There are dozens of small holes in total, and the total number of eggs is generally between 300 and 400, and up to 600. Like other weak creatures in nature, most of them do not live to adulthood. After the eggs hatch by themselves, the larvae drill out of the small holes and molt for the first time on the branches. After a few hours, the epidermis becomes keratinized and hardened, and then they fall to the ground, dig the soil with their front claws, and drill into the mud. They spend long years in the dark and survive and grow by sucking the sap from the roots of the tree. Most of the adult cicadas that come out of the ground, shed their skin and see the light again have a survival period of less than half a month. The shortest is only a pitiful three days. The longest survival period for adult black grasshopper cicadas is only 45 to 60 days in the sun.

Cicada larvae live a long time underground, up to a dozen years. After they begin to become adults, they can't live long, only about two months at most.

The eggs laid by cicadas hatch into young cicadas in half a month. The life period of young cicadas is particularly long. The shortest one lives underground for 2 to 3 years, usually 4 to 5 years, and the longest is 17 years. Young cicadas live underground for a long time, with warm winters and cool summers, and few natural enemies to threaten them. They are quite comfortable. After molting 4 to 5 times, they will drill out of the ground and climb onto branches to molt one by one (called "golden cicada molting"), becoming adults.

What also puzzles entomologists is that cicadas can determine the time very accurately, completing the transition from larvae to adults in "hell" just in time, and leaving "hell" and crawling out of the ground at the right time. This is an incredible miracle. Especially the 17-year cicada, which spends exactly 17 years in "hell" before seeing the light of day. It will take another 17 years for its offspring to appear. Therefore, entomologists are always waiting for the appearance of the "17-year cicada" just like astronomers wait for solar eclipses and Halley's Comet.

3. How many days can a cicada live in its lifetime?

A cicada can live for several years or even more than ten years.

When a black crack appears on the back of the cicada pupa, the molting process begins. The head comes out first, followed by the green body and wrinkled wings. It stays for a while to harden the wings and darken the color, and then it starts to take off. The whole process takes about an hour.

At the end of June, the larvae begin to emerge into adults. The newly emerged cicadas are green and have a maximum lifespan of about 60 to 70 days. In late July, female adults begin to lay eggs. The peak egg-laying period is in early and mid-August. The eggs are mostly laid on branches with a thickness of 4 to 5 mm. In summer, they make loud calls on the trees and use their needle-piercing mouthparts to suck sap from the trees. The larvae live in the soil and suck sap from the roots of the trees, which is harmful to the trees.

Cicada larvae live in the soil and have a pair of strong digging forelegs. They use their piercing-sucking mouthparts to suck sap from the roots of plants, weakening the tree, causing branches to die and affecting tree growth. They usually stay in the soil for several years or even more than ten years, such as 3 years, 5 years, and sometimes 17 years.

Additional information

The larval stage of cicadas is called cicada monkeys. Cicada monkeys have rich nutritional value and delicious taste, becoming a fashionable delicacy. Cicada bodies are rich in nutrients, with a dry protein content of more than 70%, a fat content of about 7%, and vitamins and various beneficial trace elements that are higher than those of general meat products. They can be called the protein king of today's food. They are distributed in most parts of the country.

It is good for people to eat this kind of food rich in protein, and it is a rare delicacy. Therefore, people who have the conditions can often eat some cicadas, which is very helpful for health.

Reference source: Baidu Encyclopedia - Zhiliao

Reference source: Baidu Encyclopedia - Cicada Monkey

The lifespan of cicadas varies depending on the species, with the longest being up to seventeen years.

Cicadas are also called cicadas. Their life span can be divided into three stages: egg, nymph and adult. Different species of cicadas have different life spans. The life span of Chinese cicadas is mostly only about 7 years, while the life span of American cicadas can reach 17 years.

Cicadas are considered to be the longest-lived insects in the world. Their eggs are laid inside tree branches. After hatching, the larvae drill out and complete their first molting on the branches. After a few hours of molting, the cicadas fall to the ground, dig the soil with their front claws, and then drill into the ground, relying on sucking the sap of the tree roots to survive.

After spending several months to more than ten years in the darkness underground, the grown-up cicadas will come out of the ground, molt again, and transform into adult cicadas, finally surviving in the sun for a few days to several months.

Morphological characteristics of cicadas

Cicadas have two pairs of membranous wings, which are basically the same in shape. They have a broad and short head with a prominent frontal lip base. They have very good vision, small compound eyes, which are located on both sides of the head and are widely spaced. They have three simple eyes. Their antennae are short and bristle-like. Their mouthparts are slender, and contain an esophagus and salivary duct, which are of the piercing-sucking type.

The thorax consists of the prothorax, mesothorax and metathorax, of which the prothorax and mesothorax are longer. All three thoraxes have a pair of legs, and the leg segments are strong and well-developed (the front legs of nymphs are used for digging, and the leg segments are swollen and have thorns). The abdomen of the cicada is long and conical, with a total of 10 abdominal segments, and the 9th abdominal segment becomes the tail segment. The 1st and 2nd abdominal segments of male cicadas have sound organs, and the 10th abdominal segment forms the anus; the 10th abdominal segment of female cicadas forms an ovipositor, which is relatively swollen.

The larvae live in the soil. The last instar larvae are mostly brown, similar to the adults. There are two species in the family Teddybill, commonly known as hairy cicadas. They are only found in southern Australia, including Tasmania. There are also different cicadas, which have similar shapes but different colors.

The eggs laid by cicadas hatch into young cicadas in half a month. The life span of young cicadas is particularly long. The shortest one lives underground for 2 to 3 years, generally 4 to 5 years, and the longest is 17 years. Young cicadas live underground for a long time, with warm winters and cool summers, and few natural enemies to threaten them. They are quite comfortable. After 4 to 5 molts, they will drill out of the ground and climb onto branches to molt one by one (called shedding), becoming adults.

What also puzzles entomologists is that cicadas can determine the time very accurately, completing the transition from larvae to adults in "hell" just in time, and leaving "hell" and crawling out of the ground at the right time. This is an incredible miracle. Especially the 17-year cicada, this kind of cicada spends exactly 17 years in "hell" before seeing the light of day. To see its children, it must wait another 17 years. Therefore, entomologists are always waiting for the appearance of the "17-year cicada" like astronomers waiting for solar eclipses and Halley's Comet.

In fact, the life span of cicadas is relatively long in the insect family, because it stays in the soil for 7 years and completes all the development process in the soil. When we see it, it is already 7 years old. It comes out of the soil only to mate and reproduce the next generation. Once mating is completed, the male cicada dies. When the female cicada lays eggs in the soil, it also dies because it has completed its mission of coming out of the soil. But in our opinion, it can only live about a week on the ground.

In fact, the life span of cicadas is relatively long in the insect family, because it stays in the soil for 7 years and completes all the development process in the soil. When we see it, it is already 7 years old. It comes out of the soil only to mate and reproduce the next generation. Once mating is completed, the male cicada dies. When the female cicada lays eggs in the soil, it also dies because it has completed its mission of coming out of the soil. But in our opinion, it can only live about a week on the ground.