Do seven star ladybugs have ears? Can it hear sounds?

Seven-star ladybug. Belong to insects Insects do not have ears but have auditory organs that function as ears The auditory hairs of male mosquitoes and ants grow on the antennae, and the most sensitive of the insect ears is the Jones apparatus, which is located in the antennal peduncle, and most insects use it to control the orientation and activity of the antennae, but the Jones apparatus of male mosquitoes and bean beetles is used as an auditory organ. The Jones apparatus of Anopheles males has about 30,000 sensory cells, and its sensitivity is comparable to that of the human ear, and it is the most sensitive to low-frequency sound waves at 350-550 cycles.

Human ears, as well as the ears of many animals, grow symmetrically on the head. The ears of insects are particularly strange, they grow not on the head, but on the body: some on the chest, some on the abdomen, some on the antennae, and some on the lower legs.

The ears of the locust, which grow on either side of the first segment of the abdomen; mosquito ears, which grow on antennae; Mantis.

cricket ears, which grow on the lower legs of the forefeet; Moths.

ears, long between the chest and abdomen; The ears of the cicada, under the abdomen. Insects have inconsistent ear growth sites, and their structure and shape are also different. The ears of locusts, mantises, and crickets have a drum-like membrane on the outside called the eardrum.

It is equipped with special hearing devices that allow you to feel the sound of the outside world. When the eardrum senses sound waves from the outside world, it vibrates, which affects the auditory organs and auditory nerve, and the sound is transmitted to the brain and responds. Mosquito ears are made up of dense hairs on their antennae.

In the second segment of the antennae, there is a sound-listening organ that can collect sounds from the outside world and transmit them to the central nervous system.

Go. It can hear the buzzing of another mosquito from fifty meters away, and even if the mosquito is loud enough to thunder, they can still distinguish between the different sounds of a female or a male. Therefore, the antennae of the mosquito, which constantly shakes when flying, are listening to the sounds around it.

The ears of insects, which have a very sensitive sense of hearing, can be said to be "downwind ears". But the ears of insects can only distinguish the rhythm of the rhythm of the sound, but cannot distinguish the melody of the tune. With the same tone, imitating the whining of male crickets, the female crickets are indifferent.

But in the dead of night, when the cricket makes a rhythmic chirping sound, it will stop chirping at the slightest movement around it. The ears of insects, which are only found in insects that can make sounds, are used to find mates and achieve the purpose of mating. Lonely females can easily find each other's hiding places based on the sounds made by the opposite sex.

Insect ears also play a big role in ensuring their own safety. The ears of moths can recognize bat ultrasound waves and quickly leave the danger zone. People use this function to record the ultrasound of bats, and at night in the field**, moths will flee when they hear it, and they dare not lay eggs and hatch nearby, endangering crops.

This is indeed a wonderful way to repel the night moth.

Seven-star ladybugs do not have ears.

Ladybugs belong to the order Coleoptera, and they do not have specialized auditory organs, but perceive their surroundings through sensory organs.

As a result, the seven-star ladybug cannot hear the sound.

Ladybugs are insects.

The seven-star ladybug is a predatory insect of the Coleoptera ladybug family, and the adult can prey on pests such as wheat aphid, locust aphid, and tick. It can greatly reduce the damage of trees, melons and fruits and various crops to pests, and is known as live pesticides, which are widely distributed in various parts of China.

Feeding characteristics of the seven-star ladybug.

The lower jaw whiskers of the seven-star ladybug are its main organs of touch and smell. The seven-star ladybug often crawls and searches on the host plant of the aphid, and when the lower jaw whiskers touch the aphid, it can quickly bite with the upper jaw and swallow the aphid. If the lower jaw whiskers are not touched, it seems impossible to detect the aphid, even if it is right in front of its eyes.

Although both adults and larvae feed on aphids, the feeding methods are different due to different insect states and different mouthparts structure.

When adults feed, they usually bite the aphid, and after simple chewing with their mouthparts, they swallow the aphid's body and appendages completely. Older larvae feed in much the same way as adults. However, due to their small mouthparts and poor swallowing ability, the first instar larvae often bite a hole in the aphid's body to suck the juice, and finally leave the aphid body shell.

An adult of the seven-star ladybug eats an average of 100-120 cotton aphids, 147 vegetable aphids, and 59 apricot aphids a day. The amount of aphids eaten by larvae varies according to the size of the instar, with less snacks in the instar and more in the instar period.

Ladybugs are generally found on wheat and rape plants, and can be found on willows, cotton, elms, locust trees, beans and other plants. Ladybugs appear on plants, generally catching food, and adults can prey on wheat aphids, cotton aphids, locust aphids, peach aphids, scale insects, ticks and other pests.

The seven-star ladybug appeared in **, what are you doing

Since the food of the seven-star ladybug is a pest of various crops, it can also be called a natural enemy of pests, and it is also known as a "live pesticide".

The seven-star ladybug has an instinct to play dead, and when it encounters danger, it will immediately fall from the plant to the ground and shrink its 3 pairs of feet, so sometimes when you see the seven-star ladybug motionless underground, it is actually playing dead.

The seven-star ladybug has different places of activity in different seasons. In winter, the seven-star ladybug mainly spends its winter among the rhizomes of wheat and rapeseed, and some spend the winter in sunny clods and soil crevices.

Seven-star ladybug, alias: Golden Turtle, New Daughter-in-law, Flower Sister, Seven-Star Ladybird, Seven-Star Flower Chicken, etc.

Habits: 1. Eating habits.

The adult ladybug has a long lifespan, with an average of 77 days, and preys on the larvae and eggs of aphids, leaf mites, whiteflies, corn borers, aphids, and cotton bollworms with adults and larvae. The amount of food eaten by the seven-star ladybug is related to the temperature and prey density. Under the condition of high temperature, the activity ability of the seven-star ladybug and prey is affected, and the predation rate is increased.

2. Self-defense ability.

It has a strong ability to defend itself, and when it encounters an enemy attack, its foot joints can secrete an extremely unpleasant yellow liquid, so that the enemy can not stand it and retreat and flee in a hurry. It also has the ability to set up death, when it encounters strong enemies and dangers, it immediately falls from the tree to the ground, shrinks 3 pairs of thin feet under the stomach, pretends to be dead and lies down, hiding from the enemy and surviving.

3. Do not interfere with each other.

Beneficial insects and pests have a clear boundary between each other, do not interfere with each other, do not intermarry, and maintain their traditional habits, so no matter how many generations they have passed down, they will not produce "mixed breeds" and will not change their traditional habits.

4. Activity venues.

In winter, the seven-star ladybug overwinters among the rhizomes of wheat and rape, and some spend the winter in sunny clods and soil crevices. In spring, once the temperature rises above 10, the overwintering ladybug wakes up and becomes active, finding it on wheat and rape plants.

In summer, as the temperature rises and the food increases, the seven-star ladybug multiplies, and the seven-star ladybug can be found on all the plants parasitic with aphids and scales, and sometimes there is even a large number of seven-star ladybugs gathering. In autumn, the number of the seven-star ladybug in the field decreases, and it often lays eggs in corn, turnips and cabbage.

5. Reproduction. The seven-star ladybug has to go through four different stages of development in its life: egg, larva, pupal and adult. One female can lay 567-4475 eggs, with an average of 197 eggs per day.

"Different species are different, and most of the different species eat aphids. Those who eat aphids are called beneficial insects.

Beneficial insects: two-star ladybug, six-star ladybug, seven-star ladybug, twelve-star ladybug, thirteen-star ladybug, red star ladybug, big red ladybug, etc.;

Pests: Eleven-star ladybugs, twenty-eight-star ladybugs.

Beneficial insects, both larvae and adults, can eat aphids.

Ladybug is a type of insect that eats pests such as mechworms, aphids, etc.

Ladybugs, which in entomology belong to the family Coleoptera. Because its shape resembles a gourd scoop used to hold water, it is called a ladybug. The ladybug's body is small, only the size of a soybean.

It is a small beetle like a half ball, hard wings, bright color, and a lot of black or red markings, cute, in some areas of our country call it "red lady", and some areas call it "sister flower".

Ladybugs have two layers of wings, and the outer layer has become a hard shell and only serves a protective role, so it is called elytra. There is also a thin layer of soft wings underneath the elytra that allow them to fly. Ladybugs are mainly beneficial insects, but there are also a small number of pests, common beneficial insects:

Two-star ladybug, six-star ladybug, seven-star ladybug, twelve-star ladybug, thirteen-star ladybug, red star ladybug, big red ladybug, etc., eleven-star ladybug, twenty-eight-star ladybug are all pests.

So, it should be a good thing to see the seven-star ladybug all the time!

Is the seven-star ladybug an insect? Here's why:

1. Answer: Ladybugs are insects.

2. Reason: The seven-star ladybug is a predatory insect of the family Coleoptera.

3. Related content: The body of the seven-star ladybug is like a half ball, and the black wings on the head are orange. The antennae are very short, not too obvious, its feet are under the big wings, its mouthparts have the ability to chew food, the reason why people call it the seven-star ladybug is because its wings have seven black dots, the seven-star ladybug is a beneficial insect, the adult can prey on wheat aphid, locust aphid, tick and other pests, can greatly reduce the damage of trees, melons and fruits and various crops suffered by pests, is called "live pesticide", widely distributed in various parts of our country.

In the southern part of North China, commonly known as "Sister Hua", the seven-star ladybug is a beneficial insect.

4. Latin scientific name: coccinella septempunctata5, distribution area: Northeast China, North China, Central China, Northwest China.

The seven-star ladybug is an insect because it is elytra.

Predatory insects of the family Ladybugidae.

The seven-star ladybug is a predatory insect of the family Coleoptera, its body is like a half ball, and its black wings are orange. The antennae are very short, not too obvious, his feet are under the big wings, his mouthparts have the ability to chew food, because its wings have seven black dots, so people call it the seven-star ladybug, the seven-star ladybug is a beneficial insect, the adult can prey on wheat aphid, cotton aphid, locust aphid, peach aphid, scale insects, ticks and other pests, can greatly reduce the damage of trees, melons and fruits and various crops suffered by pests, is called "live pesticide", widely distributed in various parts of China. In the southern part of North China, it is commonly known as "Sister Hua".

The adult body is millimeters long and millimeters wide. The body is oval, with an arched back and a watery scoop shape. The head is black, the compound eyes are black, and each has 1 pale yellow spot in the medial depression.

Antennae brown. Mouthparts black. The upper extra side is yellow.

The dorsal plate of the prothorax is black, and each of the anterior upper corners has a large, nearly square pale yellow ground. Small shield black. elytra red or orange-yellow, with 7 dark spots on both sides; The base of the wings has 1 triangular white ground on each side of the small shield.

The abdomen and feet are black.

Length. The wing sheath is red, with 3 black dots on the left and right sides, and a larger black dot in front of the junction. There are no similar species.

A lifetime goes through four different stages of development: egg, larva, pupae and adult. The adult worms of the seven-star ladybug are raised in captivity, and the indoor temperature should be controlled between 20 and 25, and the relative humidity is between 70% and 80%, and the adult eggs are required to have a higher temperature when laying eggs, and they can be raised at 25. However, it is better to raise larvae at an average temperature of about 20.

It is an insect with the characteristics of an insect: the body is segmented, composed of a head, thorax, and abdomen, with three pairs of legs, one pair of antennae, and two pairs of wings.

The seven-star ladybug is an insect, and the three pairs of legs of the seven-star ladybug are easy to see, and the two pairs of wings, one pair are elytra, which are the "shells" with those spots, and the other pair is the membranous wings, which are inside the elytra

Also, to correct your point of view, insects belong to arthropods, but arthropods are not all three pairs of legs and two pairs of wings

Also, in the case of insects, not all of them have two pairs of wings, and some insect wings have degenerated during evolution, but they still have three pairs of feet

Insecta belongs to the phylum Arthropoda, and Insecta is also known as the Hexapod