Commonly known as "robin", an insect. The largest cicada has a body length of 4 to 4.8 centimeters, with black-brown wing bases. In summer, it screams loudly in the trees and sucks sap with its needle-prick mouthparts, and its larvae inhabit the soil and suck the sap from the roots, which is harmful to the trees. The shells shed by cicadas can be used as medicinal herbs.

Cicadas are larger plant-sucking insects, usually about four or five centimeters long. Their needle-like hollow mouths can pierce trees and suck the sap. There are also different kinds of cicadas, which are similar in shape but different in color. Cicadas have three less sensitive eyespots in the middle of each eye, and thin tubes that act as supports are simply distributed on each wing. These are primitive features of an ancient insect species.

The soprano singer in the cicada family is a species known as the "double drummer". It has large ring-shaped vocal organs on both sides of its body, and in the middle of its body is a disk that opens and closes internally and externally. The disk opens and closes very quickly, and the shaking cicada song is produced from it. This sound lacks variety, though it is much louder than the call of the jungle canary.

The cicada nymph spends the first two or three years of its life underground, perhaps longer. During this time, it sucks up fluids from the roots of trees. Then one day it breaks out of the ground and finds a tree to climb on its survival instincts. After several years of slow growth, the cicada nymph climbs out of the ground as a store of energy. The front claws it uses to dig holes can also be used to climb.

The molting process begins when a black crack appears on the cicada nymph's back. Molting is controlled by a hormone. The cicada nymph's front legs are hooked so that it can hang securely from the tree when the adult emerges from its empty shell. It is very important that the cicada nymph faces the tree vertically. This is for the proper development of the adult's two wings, otherwise the wings will develop deformities. The cicada uses the shell of the nymph as a base and slowly frees itself, as if climbing out of a suit of armor. The whole process takes about an hour.

Once the cicada's upper body is free, it hangs upside down so that its wings unfold. At this stage, the cicada's wings are so soft that they are spread out by means of body fluid tubes in them. The tubes are pressurized by a liquid that causes the wings to spread. By the time the fluid is pumped back into the cicada, the wings have hardened. If a cicada's wings are disturbed in the process of spreading, the cicada will be crippled for life, perhaps unable to fly at all.

The Cicada

Since ancient times, people have been most interested in the cicada than its song. It is for the poets and writers to sing praises, and chanting cicadas to express the feelings of high and pure, and what's more, some people also use small and exquisite cage with cicadas to put in the room to listen to the sound, in order to get happy. Indeed, from the spring of white flowers, to the green leaves withered in the fall, cicadas have been tireless with a light and smooth tune, without any Chinese and Western musical instruments accompaniment, for people to sing a song and a song of light cicada song, for nature to add a strong sense of affection, no wonder people call it "insect musicians", "The Cicadas are the most popular and most popular of the world's most popular insects.

People are intoxicated by the cicada's song, but forget its nature, you know, when the cicada falls on the branch of the tree to sing, one side of its thin mouthparts piercing the bark of the tree to suck the sap, a variety of thirsty ants, flies, beetles, etc. will be heard to come to suck the sap, cicadas and fly to another tree, and then another mouth to open a "fountain! ", continue to provide them with drinks, so that if a tree is cicada inserted on a dozen holes, the branches will run out and wither and die. It is clear that cicadas are great pests of trees.

Cicadas that will chirp are male cicadas, its articulator is at the base of the abdomen, like a drum covered with a layer of tympanic membrane, the tympanic membrane is subjected to vibration and emit sound, due to the song muscle can stretch about 10,000 times per second, the cover and the tympanic membrane between the empty, can play a role in the *** song, so its song is particularly loud. And can take turns to utilize a variety of unused vocal tones rousing song. The female cicada's musical instrument structure is incomplete, can not sound, so it is "mute cicada".

The male cicada sings non-stop every day, in order to lure female cicadas to mate, the male cicada's call, female cicadas listen to like a beautiful music, in the mating after fertilization, female cicadas, with a sword like spawning tube in the branches into a row of small holes, the eggs in the small holes, a few weeks after the male and female cicadas will die.

Why do male cicadas scream? It turns out that the cicada belly on the two small round pieces called sound cover, sound cover on the inside of a layer of transparent film, this layer of membrane called valve, when it is the sound of the valve, people use megaphones to expand their voices, the sound cover is the equivalent of the cicada's megaphone to contract back and forth to expand the sound, it will be issued, "know --, know --," called the "know --, know".

The tiny larva hatched from the egg, stay in the branches of the tree, the autumn wind blew it to the ground, to the ground, immediately looking for soft soil to drill down to the roots of the tree, sucking the sap of the roots of the tree life, less than two or three years, more than ten years from the larvae to the adult cicada to pass through five molting, four of which are carried out in the ground, and the last time, it is drilling out of the soil and climbed to the tree molted to the dry light yellow shell (which is the cicada shell) before the cicada shells, and the cicada shells. (This is the cicada shell) before becoming an adult. This shows that the cicada is an insect that can not see the sky, although the life expectancy is very long, but very few rarely live in the sun, almost all their lives in the dark underground, can be said to be too sorry.

The cicada has two pairs of membranous wings, the wing veins are very hard, when the cicada rests, the wings always cover the back. Cicadas seldom fly freely, and only fly from tree to tree when feeding or being harassed. Interestingly, cicadas can suck juice with a straw while singing with a musical instrument, eating and singing without interfering with each other, the cicada's call can forecast the weather, if the cicada is very early in the end of the tree singing loudly, which tells people "today's weather is very hot".

Cicadas

Cicadas have a noble character. The ancients thought that the cicada was a symbol of purity as it drank the dew, so the ancients often used the cicada's purity to show the purity of their own character. The Tang Dynasty Poetry Commentary says, "The cicada singers sing of their voices, and this is the only way to honor their character." Since the cicada perches on a high branch, eats the wind and sleeps in the dew, and does not eat the food of the world, its metaphorical character belongs to the type of purity. Luo Binwang's "Cicadas in Prison": "No one believes in purity." Li Shangyin's "Cicada": "It is difficult to be satiated by the high," and "I also raise my family to be pure. Wang Yisun's "Qitian Le": "I hold a high and pure heart, but I have become miserable." Yu Shinan's "Cicada": "The sound of living in a high place is far away, not through the autumn wind." They all use the cicada as a metaphor for a noble character.

Cicadas

--Li Shangyin

It is difficult to be satiated by the high, but I hate the sound in vain.

The five cicadas are so thin that they want to be broken, and the one tree is so green that it has no feeling.

The old garden has already been turned over.

It's a good thing that you're so worried about me, but I'm not.

The first two sentences are about the cicadas' song, and the third and fourth sentences are about the cicadas' lack of song: "A tree is green and unfeeling", which is really a sentence that pursues the soul and takes the breath. The first five or six sentences of the first "clear" word for the ground, and then by "annoying gentleman" two words folded out of the concluding sentence to the old pen high method, in the evening a great also.

In the heat of summer, the cicadas can bring wild fun, tranquility and coolness to people. The rhythmic sound of cicadas often reminds people of their childhood. In summer, after a thunderstorm, you can find some round holes in the ground around the roots of the trees, which is where the cicadas emerge from the ground, and if you are lucky, you can catch the cicadas without moulting.

Cicadas belong to the family of Homoptera, with about 2,000 species known worldwide and only 200 in China. They appear in nature at different times. Platypleura, with a body length of about 2 centimeters, is dark brown all over. Platypleura is the earliest singing actor on stage, the sound is sharp and long, continuous.

Grasshoppers, also known as the robin, song cicada, in this small family is the largest. Body length of about 4 centimeters, mixed body black shiny, chirping sound rough and loud, chirping sound high and loud, like a tenor. However, their voices are a bit harsh, when the group of cicadas chirping at noon, quite disturbing the rest of the suspicion.

The cicadas are isolated and only found in mountainous areas, and their calls are always "woo-woo-woo-woo ...... woo-woo" in a sad and miserable tone, as if they are crying.

Volts of cicadas to the summer solstice before the stage singing, "volts, volts" in a row, volts of the day just arrived, it can not wait to tell people "volts". Perhaps it is good intention to tell people in advance that the day is coming to an end, please be prepared for the climate to become cooler.

The cicada, body length of about 2.5 cm, head and chest light green, because it screams in late fall, it is also known as the autumn cicada. Cicadas only begin to call in the fall, and their singing is the finale of this "Cicada Concert Series". However, they are only "ZiZiZi" a note, sing too monotonous, its artistic level is not bear the weight of the finale.

The reason why cicadas are able to sing, because it has a pair of bellows in the abdomen, consisting of the tympanic membrane and tympanic membrane, when the membrane of the articulation membrane contraction, it will produce sound waves, emitting a loud and clear sound. But don't forget that only the male cicadas have songbirds, and the female cicadas are "mute".

The cicada is an incomplete metamorphosis of gradual metamorphosis. They have a long life history, with one generation completing in two to three years. The most famous species to the United States of 17 years of cicadas, in addition there are three kinds of 13 years of cicadas, they are insects in the longevity. Cicadas have a more peculiar way of life. In summer, cicadas die within a week after laying their eggs, which hatch after about a month, and after hatching, the wakame falls to the ground and digs its own hole to burrow into the soil to live. In the soil, they live by sucking sap from tree roots with stinging mouthparts. They have to go through a long waking period. After crawling out of their burrows, the old mature larvae slowly climb up the trunks of trees and then split open from the cephalothorax. Soon, the adult crawls out of the cicada shell, and the wings spread and dry by the sunlight. The feathering process takes about 1 to 3 hours. Adults fly to the jungle canopy, piercing the branches and trunks of trees with their piercing-sucking mouthparts to suck sap, causing harm to forests, fruit trees and so on. After the adults are sexually mature, the males begin to chirp, attracting females for mating. After mating, the males die, and the females also die after spawning their eggs, thus completing their mission to pass on their seed.

Catching cicadas is different from catching other songbirds. Cicadas have a tendency to light, when night falls, just burn a fire under the tree trunk, while knocking the trunk, cicadas will be pounced on the fire, then quickly up to live capture, nine out of ten, very interesting.

Some people call the cicadas: Masimov Cyrtoxis Masimov Turtle

Yu Shinan. Cicadas

Drop down and drink the dew, and ring out of the sparrow-tree.

Cicadas are not the result of the autumn breeze.

Note: The word "strings" is pronounced "rui" (second tone)