When we see or catch ladybugs, we often count the spots on COLEOPTERA and then say how many ladybugs there are.
Sometimes this method really works. For example, there are 36 species of ladybugs named by Linnaeus, the originator of biological naming, and 26 species are effective. Among these 26 species of ladybugs, there are 18 species named after how many stars, dots and stripes.
If we recognize these ladybugs and they are all typical stripes, we only need to count the spots or stripes on the wings of Coleoptera and say how many stars or ladybugs are right. There are 42 species of ladybugs in Britain. If some small and uncommon ladybugs are removed, among the remaining 24 common ladybugs (with English names), 17 species are named by numbers, accounting for 70.8%. 12 species of ladybugs are named by numbers in English, accounting for 54.5%.
However, there are many kinds of ladybugs in China, and the number of stripes on ladybugs Coleoptera is between 0 and 28, which is far from enough. But there are still many ladybugs named by numbers.
Anyway, when we see a ladybug, we still have to count its stars.
2. Knowledge about ladybugs
Ladybug is the general name of the round beetle of Coccinellidae. They are small insects with bright colors, usually with red, black or yellow spots.
Don't call it Xiao Pang, Matchmaker, floret, Scarab, Scarab (but Scarab actually refers to another kind of beetle), and even some species are commonly called smelly turtles because their secretions have an unpleasant smell (but this is also a mixed name). Lady's English name ladybirds (also known as ladybugs) is generally considered to imply the Virgin Mary in Catholic belief.
There are more than 5000 species of ladybugs in the world, of which more than 450 species live in North America. People often collect groups of ladybugs and sell them to farmers and gardeners to control pests such as aphids, mites and mites.
3. Who knows about ladybugs?
Ladybug is a very beautiful beetle, with a round body and smooth or furry sheath wings. Usually, black COLEOPTERA has red or yellow stripes, or red and yellow COLEOPTERA has black stripes, but some ladybugs have yellow, red or brown COLEOPTERA without spots. The body length is generally between1-15 mm. There are other insects that are very similar to ladybugs, such as some leaf beetles (Figure B), but there are no obvious rows of thick spots on the Coleoptera of ladybugs, and their tentacles and feet are short. Professionally speaking, most ladybugs have the following three characteristics, that is, the lower jaw must be axe-shaped, and the hocks are hidden in four sections. Not all ladybugs have these three characteristics at the same time. If two or three of the above characteristics can be found in a beetle, we can assume that it is a ladybug. But some genera, such as ladybugs, have only one feature of the back baseline. However, this species is not common, and the number of specimens collected so far is very small.
4. The knowledge of ladybugs is in urgent need.
Coccinella: Insecta: COLEOPTERA: Coccinella: Coccinella: Coccinella: Coccinella: Coccinella: Coccinella: Coccinella: Coccinella: Coccinella: Coccinella: Coccinella: Coccinella
At first emergence, the coleoptile wings are tender yellow and soft, and gradually change from yellow to orange-red after 3-4 hours. At the same time, seven black spots appeared on the wings of the two coleoptiles, and the one below the small shield was a small shield spot, which was divided into two halves by the sheath seam. In addition, there are three black spots on each COLEOPTERA, and there are 1 small triangular white spots on both sides of the small shield at the base of COLEOPTERA.
The head is black, and there are 1 yellowish spots on the forehead edge connected with the compound eye. The compound eye is black, and there are 1 yellowish spots in its medial concave part, which are sometimes connected with the above macula.
The antenna is chestnut brown, slightly longer than the forehead width, with dense hammer joints, straight sides and truncated ends. There is a narrow yellow strip at the front edge of the base of the lip, the upper lip and mouthparts are black, and the outer side of the maxilla is yellow.
The chest backboard is black, with 1 yellowish spots on the two front corners. The small shield is black.
The anterior chest web is narrow and sunken, and there are longitudinal ridges and branches at the posterior baseline. The foot is black, the tibiofibular joint has two spurs, and the claw has base teeth.
The abdomen is black, but the middle chest and back are white. The posterior margin of the sixth abdomen is convex and the surface is flat.
Male worm: the rear edge of the sixth abdomen is flat, with a horizontal depression in the middle and long hair on the upper edge. Eggs: 1.26 mm long; 0.60 mm wide.
Orange bag, long oval, sharp end. Piles stand on the back of cotton leaves.
Each egg is generally 20-40, with a maximum of 80. Larvae: * * 4th instar. Main characteristics of each age: 1 age: body length 2-3mm.
The body is all black. From the middle chest to the eighth abdominal segment, each segment has 6 hairy warts.
Second year: 4 mm long. The head and feet are black, and the whole body is gray-black.
The left and right back corners of the chest are yellow. There are six warts on the back and side of each abdominal segment, and the two warts on the back and left side of the first abdominal segment are yellow and black respectively.
The yellow spots on the back of the fourth abdominal segment are not obvious, and the rest of the warts are black. Third age: 7 mm long.
The body is gray and black. The backboards of head, feet, chest and abdomen are black. There are yellow spots on the front and back corners of the chest backboard.
The left and right warts and the lower warts of the first abdominal segment are orange with black thorns. In the fourth quarter, the dorsal 2 warts are yellowish and the rest are black.
The fourth age: the body length is about11mm. The body is gray and black.
There are orange spots on the front and back corners of the chest backboard. There are orange spots on the left and right warts and the lower warts of the first and fourth abdominal segments.
The remaining warts are black. Pupa: 7 mm long and 5 mm wide.
Body yellow. There are four black spots on the front edge of the chest backboard, two in the middle are triangles, two in the middle of the back edge of the chest backboard and two in the four corners.
There are two black spots on the back plate of the middle chest. There are 4 black spots on the back of the 2nd-6th abdominal segment.
Black molting, terminal larvae in the abdomen. Commonly known as Sister Hua.
Distributed in Northeast China, North China, Central China, Northwest China, East China and Southwest China. Mongolia, Korea, Japan, the former Soviet Union, India and Europe also recorded. The adult is 5.2-6.5mm long and 4-5.6mm wide.
The body is oval, the back is arched, and it is half spoon-shaped. The head is black, the compound eye is black, and there are 1 yellowish spots in the medial concave part.
The tentacles are brown. The mouth is black.
The outside of the upper forehead is yellow. The chest backboard is black, and there is a 1 large square yellowish area in the upper front corner.
The small shield is black. COLEOPTERA wings are red or orange with 7 black spots on both sides; There are 1 triangular white lands on both sides of the wing bottom shield.
The body, abdomen and feet are black. Generations occur every year
Adults overwinter and sting in April of the following year. Lay eggs on plant hosts with aphids.
Both adults and larvae feed on various aphids and psyllids. It is a beneficial insect and should be protected.
Ladybug septempunctata is a famous natural enemy of pests. Adults can prey on wheat aphids, cotton aphids, locust aphids, peach aphids, scale insects, ticks and other pests, which can greatly reduce the harm of pests to trees, fruits and various crops. It is called "live pesticide". Coccinella septempunctata is a predatory natural enemy insect of Coleoptera Coccinellidae, which is widely distributed in all parts of China.
In 1970s, cotton and wheat aphids were controlled by migration-assisting method in the lower reaches of the Yellow River, and artificial propagation began in 1990s, and it was used in production. Ladybug septempunctata is named for its seven black spots on COLEOPTERA.
The number of generations per year varies from region to region. For example, 6-8 generations occur every year in Anyang, Henan.
In the cold area of the north, the number of generations is small every year. The average life span of adult ladybug is 77 days, and it preys on aphids, spider mites, whiteflies, corn borers, cotton bollworms and eggs with adults and larvae.
1 female ladybugs can lay 567-4475 eggs, with an average of 78.4 eggs per day, and the maximum can reach 197 eggs. The food intake of ladybug is related to temperature and prey density.
Taking aphids as an example, when the prey density is low, the prey quantity increases exponentially with the increase of density; When the density is high, the predation is close to the limit level. Under the condition of high temperature, the activity ability of ladybugs and their prey is affected, and the predation rate is improved.
According to statistics, the average daily food intake of Coccinella septempunctata on Myzus persicae is 1 age 10.7, 33.7 for the second age, 60.5 for the third age, 24.5 for the fourth age 130.8 for the adult. Ladybug septempunctata can eat tens of thousands of aphids in its life span of nearly 80 days.
The poisonous ladybug is harmless to human beings, livestock and natural enemies, with no residue and no pollution to the environment. Coccinella septempunctata is widely distributed in China, including Beijing, Liaoning, Jilin, Heilongjiang, Hebei, Shandong, Shanxi, Henan, Shaanxi, Jiangsu, Zhejiang, Shanghai, Hubei, Hunan, Jiangxi, Fujian, Guangdong, Sichuan, Yunnan, Xinjiang, * * *, Inner Mongolia and other places, and is common in farmland, forests, gardens and orchards.
Ladybug septempunctata is a famous natural enemy of pests. Adults can prey on wheat aphids, cotton aphids, locust aphids, peach aphids, scale insects, ticks and other pests, which can greatly reduce the harm of pests to trees, fruits and various crops. It is called "live pesticide". Ladybug septempunctata has strong self-defense ability. Although its body is only as big as soybeans, many powerful enemies are helpless against it.
There is a kind of "chemical weapon" on the joints of its three pairs of slender feet. When it is attacked by the enemy, its ankle can secrete a very unpleasant yellow liquid, which makes the enemy retreat and run away because of unbearable. It also has the skill of pretending to be dead, when encountering strong enemies and dangers.
5. How do ladybugs live?
Ladybug is a small insect with bright body color, mostly red, black or yellow spots. There are more than 5000 species of ladybugs in the world, of which more than 450 species live in North America.
Appearance characteristics
The body of ladybug is hemispherical, generally 5~ 10 mm long. Short feet and bright colors. The pattern of nine planets ladybug is orange COLEOPTERA with four black spots and half a dot, which is a typical color pattern of ladybug.
living environment
Ladybugs, like other wild animals, have no fixed place and can only endure all kinds of bad weather. Sometimes they hide under leaves and use it as an umbrella to keep out the wind and rain. For insects, a drop of rain has many meanings. If they want to drink water, then raindrops are equivalent to a pool, a huge cup that can't be seen. But when the environment is relatively harsh, raindrops are even bigger, and the tension on the surface of raindrops can also make small insects fall into the swamp.
The life of larvae
Ladybugs in larval stage live a monotonous life, wandering among flowers and plants almost every day, and madly preying on aphids. The life span of ladybugs is very short, and it only takes about one month from the growth of eggs to the adult stage, so we can find the eggs, larvae and adults of ladybugs in the garden at any time. With the passage of time, the appetite of ladybug larvae is getting bigger and bigger, and the body is constantly growing. They must break free from the shackles of old skin and start a difficult journey-molting. This process is not as simple as taking off our old clothes and putting on a big coat. Ladybugs have to go through at least 5-6 molting processes in their life, and each molting will be a brand-new experience, and their bodies will continue to grow until they have enough energy to enter the pupa stage.
When the ladybug pupates, it will first find a safe place for itself, then hang it under the leaves and begin to experience a thrilling transformation. It will change from a weak larva to a strong adult ladybug. This is an unimaginable process. The larva's body will be decomposed and then reassembled, adjusted and decorated, all in order to welcome its brand-new life. When it finally breaks into a new adult ladybug, it will undergo some changes, because at this time its body is still soft and delicate, and it has not yet fully developed. At this time, the ladybug will expose itself to the sun, absorb enough nutrients, make its body color gradually deepen, and the markings will gradually appear. In a few hours, it will become exactly like other adult ladybugs in the garden.
Adult ladybugs will prey on some immature insects, such as aphids, but as long as they are not wearing protective coats such as armor and are soft and small, they may become a good meal. The prey will not trap itself, and the ladybug must often fly to search for the target. Ladybugs look unlikely to fly. It looks more like a medicine cabinet than a pilot. It has hard fur, and tiny and delicate wings will come out from below and dance wildly. I have to admit that ladybugs are really a skilled aviator, and it is precisely because of their superb flying skills that they can come and go freely in every corner of the garden.
Ladybugs usually lay their eggs in places frequented by aphids to ensure that their children can get the greatest chance of survival after birth. After the eggs hatch, the newborn larvae will take the aphids around them as their delicious snacks. The appearance of larvae is very different from that of their parents. They are not equipped with thick armor, their bodies are very soft and distributed in knots, but they have some hard manes, which can play a protective role. Their jaws are strong and shaped like a pair of pliers, which can easily penetrate the body of aphids. When ladybug larvae come into contact with the outside world, they will secrete a yellowish liquid (composed of alkaloids), which is non-toxic, but has a strong smell of * * * *, so as to disperse the enemy.
6. Ladybug knowledge
Coccinella septempunctata is a predatory insect of COLEOPTERA Coccinellidae, which is beneficial. Adults can prey on wheat aphids, cotton aphids, locust aphids, peach aphids, scale insects, ticks and other pests, which can greatly reduce the harm of trees, fruits and various crops to pests. Known as "live pesticides", they are widely distributed all over China. In the south of North China, it is commonly known as "floret". Ladybug septempunctata goes through four different developmental stages: egg, larva, pupa and adult. The adult ladybug septempunctata should be raised artificially, and the indoor temperature should be controlled between 20-25℃ and the relative humidity should be 70%-80%. Adults should be raised at 25℃ when laying eggs. But the average temperature of feeding larvae is about 20℃.
gingkgo
coccinella septempunctata
Latin scientific name
coccinella septempunctata
Another name
Scarab, new wife, Sister Hua
Binomial nomenclature/system
coccinella septempunctata
boundary
animal kingdom
door
arthropoda
subdivide
Six-legged subphylum
summary
insecta
subclass
Winged subclass
eye
Beetles
suborder
Polufaga
The branch of academic or vocational research.
Ladybug family
subfamily
Ladybug subfamily
belong to
ladybird
grow
coccinella septempunctata
Distribution area
Northeast China, North China, Central China, Northwest China, East China and Southwest China
English name
ladybird
kind
carnivore
7. What is the knowledge of insects?
Insects are the largest animal group on the earth, accounting for more than 50% of all biological species (including bacteria, fungi and viruses), and their traces are almost all over the world.
1. Basic characteristics of insects: a pair of antennae, usually two pairs of wings and three pairs of feet. The body of an insect is divided into head, chest and abdomen.
There is an exoskeleton on the body surface, and the body is segmented (segment by segment). The link between the body and the body consists of head, chest and abdomen respectively. Insects hatched from eggs usually undergo a series of significant internal and external posture changes during their growth and development before they can be transformed into sexually mature adults. This change in posture is called metamorphosis.
2. Insects can be divided into the following categories: COLEOPTERA COLEOPTERA is the largest order of Insecta, commonly known as "beetle". There are more than 330,000 species, accounting for 40% of the total number of insects.
There are more than 7,000 species recorded in China. Their front wings are keratinized and hard without wings, so they are called "sheath wings", hence the name.
The exoskeleton is developed and the body is hard, which can protect the internal organs. Body shape changes greatly.
This kind of insect is very adaptable. There are chewing mouthparts, which have a wide range of eating habits: they are divided into phytophagous-all kinds of beetles and scarabs; Carnivorous beetle, tiger beetle; Saprophytic-Yan Jia; Carnivorous burial armor; Fecal feeding-dung beetles.
This group belongs to complete metamorphosis, and the larvae have different shapes due to different living environments and feeding habits. The vast majority of pupae are naked pupae, and a few are quilt pupae. Lepidoptera Lepidoptera is the second largest butterfly in Insecta, which is named because of its large number of scales on its body and wings.
Mainly divided into moths and butterflies, * * * is characterized by siphon mouthparts, which are formed by the specialization of the outer jaw leaves of the lower jaw and the upper jaw degenerates or disappears; Completely abnormal; Body and wings are densely covered with scales and hair; Two pairs of wings are membranous, each with a closed cavity, and the wings are covered with scales to form special markings, which are often used for classification; A few wingless or short-winged types; Section 6 of tarsal bone; Tailless beard; Totally perverted. Larvae polypod type, except for three pairs of pectoral feet, generally has a pair of ventral feet at the 3rd-6th and 10 abdominal segments, but it is reduced and specialized, and the ends of the ventral feet have toe hooks; Stripes on larvae are very important in classification; Pupa is a quilt.
Adults generally feed on nectar, water and other things, which are harmless (except for a few, such as fruit sucking moths, which endanger nearly mature fruits). The vast majority of larvae are terrestrial phytophagous, which harms various plants; Some are aquatic.
Diptera Diptera includes mosquitoes, midges, gnats, flies and so on. , is a larger order of Insecta. Because the front wing of the adult is membranous and the rear wing degenerates into a "balance bar", it is named.
Diptera is divided into three suborders: long horn, short horn and ring crack. The tentacle of Ceratoptera is more than 6 nodes, including mosquitoes, midges and gnats, which is a relatively low group; Brachionus rotifer suborder tentacles less than 5, generally 3, commonly known as "tabanus"; Cyclophilitis is what we call a "fly".
Hymenoptera Hymenoptera includes all kinds of ants and bees. Hymenoptera insects have obvious characteristics, including chewing mouthparts, and the connection between the front and rear wings is completed by wing hooks.
This group is widely distributed, with more than 100000 known species and at least 250000 estimated. According to whether the ventral floor contracts, it can be divided into broad-waist suborder and thin-waist suborder.
Lepidoptera is a lower phytophagous group, including sawflies, tree bees, stem bees and so on. Lepidoptera includes most species of Hymenoptera, including ants, wasps and various parasitic bees. Hemiptera Hemiptera, composed of Heteroptera and Homoptera, has 133 families and more than 60,000 species.
Heteroptera is stinkbug. It is one of the main groups of Insecta.
Hemiptera insects rest with their front wings covering the back of their bodies and their rear wings hiding under them. Some groups are named "Hemicoleoptera" because of the ossification and thickening of the base of the anterior wing.
The sucking mouthparts feed on the juice of plants or other animals. It is an incomplete abnormal insect.
There are smelly glands in the abdomen, which will spit out volatile smelly liquid when the enemy hurts. Homoptera includes cicadas, aphids and so on.
The classification of Hemiptera is still controversial. Homoptera was originally regarded as an independent order, while Hemiptera and Homoptera are still regarded as different orders in many places. Orthoptera Orthoptera is a common insect, including owl, cricket, mole cricket, locust and so on. There are more than 20,000 known species in the world, which are widely distributed.
The front wing of the adult is slightly hard, which is called "covering wing", and the rear wing is membranous. This group is incomplete metamorphosis, nymphs and adults mostly feed on plants, which is harmful to agriculture, forestry and cash crops. A few species are omnivorous or carnivorous.
Orthoptera is a primitive insect group, which originated from the original Orthoptera. In the last Carboniferous, it was divided into two groups, namely, long tentacle tetanus and short tentacle grasshopper. Many of them have become traditional ornamental insects because of their singing or fighting habits, such as cricket fighting and owls.
Hydra is a small group with only two families: Lepidoptera and Lepidoptera. It is distributed all over the world and recorded about 300 species.
There are more than 40 species known in China, and the common ones are Gubei mud wren, Toyo giant-toothed wren and China grouper wren. Some scholars classify it as Neuroptera 1 suborder.
The adults of the order Lepidoptera are medium and large, with a body length of 8-65 mm and a wing length of 24-175 mm. The front and rear wings are similar, the wing veins are reticulate, the wing back is like a roof, and the front veins are not bifurcated. The hip area of the rear wing is wide and foldable; There are many wing veins, but the outer edge is no longer divided into small forks, which can be distinguished from Neuroptera; The transverse veins of the leading edge are arranged in rows, single vein or bifurcated at the end. Odonata Odonata Odonata is a primitive group of Insecta and a smaller order.
Odonata is divided into three suborders: Heteroptera is collectively called "dragonfly"; Homoptera is collectively called "Agkistrodon", and two species of Interptera are found in Japan and India. There are about 5,000 species in the world and more than 300 species in China.
Dragonflies are strong and their wings are flat at rest. Meretrix meretrix has a slender body, and its wings rest on its back. Pterosaur had a strong body and wings tied to its back.
Odonata is an incomplete metamorphosis insect, and its larva "Hydra" preys on sexual life in water. Adults are also carnivorous species, preying on small insects, flying fast and fierce.
In addition to the above seven orders, there are 27 other orders, including 34 orders. There are many kinds and shapes of Insecta, but they have exoskeleton and three pairs of feet, which are the same characteristics.
Many of them are familiar to us: Mayflies, ferocious mantis, mantis; It's everywhere.
8. The story of children and ladybugs
The spring breeze blows gently, and the planted cabbage finally has a harvest. The children were very happy, but what made them even happier was that they found a little ladybug at the harvest.
"oh! Teacher, look, I found a little ladybug. " Jin Ming shouted as if I had discovered a new continent. "When I saw it, it was really a little ladybug, red, like a ruby, resting on the green leaves. Hearing the shouts, the children all gathered around.
"Teacher, I found it, too." Although Ying Hui didn't see it, she let out a cry and ran over. With a bang, her feet couldn't stop and she fell. Fortunately, she fell on the cabbage and was not hurt, but Ying Hui was still a little wronged and burst into tears. I smiled and said, "Did you catch the little ladybug?" Wei Yingtian really replied: "No." "I think, ladybug, maybe her wings are hurt." Zhao Jun analyzed like an adult. "Teacher, let's put it on this leaf! We can take good care of it. " Wang Jing picked up a leaf and said to me, I nodded. Wang Jing is a smart, sensible and caring child who always takes care of other people's feelings.
"Can ladybugs lay eggs on leaves?" Zaizai often goes back to his hometown, where he sees more and more imagination. In order to get closer to the ladybug, you push me and I push you.
"Ah! Don't push, I was caught. " Yan Qi shouted. It's really amazing. Startled by the shouts, the children walked on as if nothing had happened. Yan Qi pushed this and that "teacher, they pushed it around." In fact, she was involved herself, but she didn't forget to complain. "Please, let it go! Give it freedom! " Zhao Jun hands folded pitifully begging, poor expression really makes people laugh.
"Ah! Are you stupid? It's hurt. You will die if you fly away like this. No, no "Lele, who has a strong personality, also expressed his opinions, which made him very dissatisfied with the practice of averaging signs." Sandy couldn't squeeze in, so she lingered outside the wall, looking for a gap to enter. His feet stood high, his eyes kept looking in, and there was no language.
"We have a big book about little ladybugs. At the teacher's place, the little ladybug always plays dead. It is afraid that we will hurt it. " Yi Ying, who is eager to learn, suddenly remembered that there is such a big book, and the knowledge in it. "Oh, I remember, this little ladybug is mine. There used to be one at home and it flew away. This belongs to my family. Exactly the same. " Obviously smart and cunning. In order to have that ladybug, what he said always makes people believe it.
Suddenly, the little ladybug really flew. As Yi Ying said, ladybugs play dead. The children were very sad after shouting and accused each other: "You quarreled, because it didn't like you, so it flew away." I went over and said, "The little ladybug has gone home, and it will be sad to find its mother." "Really?" The children seem to find some comfort. I nodded, and the children were no longer so sad. Lele asked, "Will it come back?" "Does it remember the way back?" Yan Ying said. "Yes, it will remember the way back." Zhao Jun said firmly. "No, it lives in my house. It will come back to my home. " I'm still imagining it.
"Find the cat and it will come back," Yan Qi said. Although adults can't figure out why the little ladybug comes back and has something to do with cats, children are like this. As long as they are willing, they can say a thousand possibilities. "Will the cat bite it?" Ying Hui asked. "No," everyone said in unison.
In the next few days, the children were still obsessed with the little ladybug.
Teacher Wu Jianmin.
2008.3
9. The story of children and ladybugs
The spring breeze blows gently, and the planted cabbage finally has a harvest.
The children were very happy, but what made them even happier was that they found a little ladybug at the harvest. "oh! Teacher, look, I found a little ladybug. " Jin Ming shouted as if I had discovered a new continent. "
When I saw it, it was really a little ladybug, red as a ruby, resting on the green leaves. Hearing the shouts, the children all gathered around.
"Teacher, I found it, too." Although Ying Hui didn't see it, she let out a cry and ran over. With a bang, her feet couldn't stop and she fell. Fortunately, she fell on the cabbage and was not hurt, but Ying Hui was still a little wronged and burst into tears. I smiled and said, "Did you catch the little ladybug?" Wei Yingtian really replied: "No." "I think, ladybug, maybe her wings are hurt." Zhao Jun analyzed like an adult.
"Teacher, let's put it on this leaf! We can take good care of it. " Wang Jing picked up a leaf and said to me, I nodded. Wang Jing is a smart, sensible and caring child who always takes care of other people's feelings.
"Can ladybugs lay eggs on leaves?" Zaizai often goes back to his hometown, where he sees more and more imagination. In order to get closer to the ladybug, you push me and I push you.
"Ah! Don't push, I was caught. " Yan Qi shouted. It's really amazing. Startled by the shouts, the children walked on as if nothing had happened. Yan Qi pushed this and that "teacher, they pushed it around." In fact, she was involved herself, but she didn't forget to complain.
"Please, let it go! Give it freedom! " Zhao Jun hands folded pitifully begging, poor expression really makes people laugh. "Ah! Are you stupid? It's hurt. You will die if you fly away like this. No,no. "
Lele, who has a strong personality, also expressed his views, which made him very dissatisfied with the practice of average signs. Sandy couldn't squeeze in, so she lingered outside the wall, looking for a gap to enter. His feet stood high, his eyes kept looking in, and there was no language.
"We have a big book about little ladybugs. At the teacher's place, the little ladybug always plays dead. It is afraid that we will hurt it. " Yi Ying, who is eager to learn, suddenly remembered that there is such a big book, and the knowledge in it.
"Oh, I remember, this little ladybug is mine. There used to be one at home and it flew away. This belongs to my family. Exactly the same. " Obviously smart and cunning. In order to have that ladybug, what he said always makes people believe it.
Suddenly, the little ladybug really flew. As Yi Ying said, ladybugs play dead. The children were very sad after shouting and accused each other: "You quarreled, because it didn't like you, so it flew away." I went over and said, "The little ladybug has gone home, and it will be sad to find its mother."
"Really?" The children seem to find some comfort. I nodded, and the children were no longer so sad. Lele asked, "Will it come back?" "Does it remember the way back?" Yan Ying said.
"Yes, it will remember the way back." Zhao Jun said firmly.
"No, it lives in my house. It will come back to my home. " I'm still imagining it.
"Find the cat and it will come back," Yan Qi said. Although adults can't figure out why the ladybug came back and what it has to do with the cat, children are like this. As long as they are willing, they can say a thousand possibilities.
"Will the cat bite it?" Ying Hui asked. "No," everyone said in unison.
In the next few days, the children were still obsessed with the little ladybug. Teacher Wu Jianmin, March 2008.
10. Insect knowledge
Insects are invertebrates in the animal kingdom, arthropods and insects. They are the most abundant animals in the world, with more than 6,543,800 species found. Its basic characteristics are head, chest and abdomen, two pairs of wings and three pairs of feet; 1 The pair of antennae are born in the head and the bones are wrapped in the body; Life forms have changed a lot, all over the world. Insects are different in structure from vertebrates. Their bodies are not supported by endoskeleton, but covered with a shell made of chitin. This shell will be segmented to facilitate movement, just like the knight's armor.
Common insects such as dragonflies, ladybugs, locusts, cicadas, longicorn beetles, water turtles, butterflies, silkworm moths, ants, flies, bees, aphids and so on.