Entomological information, insect information and insect knowledge

1. The body of an insect is divided into three parts: head, thorax, and abdomen. Adults usually have 2 pairs of wings and 6 legs, the wings and feet are located in the thorax, and the body is composed of a series of body segments, which are further assembled into 3 segments (head, thorax and abdomen). A pair of antennae are head-born, and the bones are wrapped around the body; The form of life is varied, and it is spread all over the world.

It is one of the most diverse arthropods.

2. Insects are the most abundant animals in the world, with more than 1 million species discovered, more than all other animal species combined.

3. The structure of insects is different from that of vertebrates, their bodies are not supported by an endoskeleton, and they are covered with a shell composed of chitin. This shell is divided into sections to facilitate movement, like a knight's armor.

4. Insects play a very important role in the biosphere. Insect flowers need the help of insects in order to spread pollen. And honey collected by bees is also one of people's favorite foods.

In some parts of Africa, Southeast Asia, and South America, insects themselves are the food of the natives.

5. But insects can also pose a threat to humans, such as locusts and termites. And some insects, such as mosquitoes, are also transmitters of diseases.

6. Some insects can cause harm to humans through venom or bites. For example, wasps inject venom into intruders with their stings.

Insects are the most abundant group of arthropods among invertebrates, accounting for more than 50% of all biological species (including bacteria, fungi, and viruses), and their tracks are found in almost every corner of the world.

Until the beginning of the 21st century, there were more than 1 million species of insects known to humans, but there are still many species yet to be discovered. Insects are the most diverse and abundant in the animal kingdom and have a significant impact on agricultural production and human health. The most common are locusts, butterflies, bees, dragonflies, flies, grasshoppers, cockroaches, etc.

Not only are there many species of insects, but the number of individuals of the same species is also staggering. The distribution of insects is so wide that no other class of animals can compare with it, and it is almost all over the earth. There are different types.

Most insects can be used as specimens, and they are a good biological resource that humans can use.

Insecta is not only the largest class in the phylum Arthropods, but also the largest in the animal kingdom. However, there are about 10,000 known species of plants (including bacteria), and only 1 3 species of insects. It is difficult to know the exact number of species of insects, because taxonomists are constantly discovering new species, for example, according to statistics, the number of lepidopteran insects (moths, butterflies) increased from 80,000 in 1931 to 100,000 in 1934 and 140,000 in 1942.

The largest order in the class of insects is Coleoptera, with more than 250,000 species, and there are about 60,000 species in the general family of weevils. Not only are there many species of insects, but the number of individuals of the same species is also staggering. An ant colony can have up to 500,000 individuals.

It has been estimated that the number of ants as a whole may exceed the total number of other insects. In the years when the wheat suckers were in a disaster, there were as many as 25.92 million acres of land. A tree can contain up to 100,000 individual aphids.

In broad-leaved forests, there can be 100,000 springtails per square meter of soil. The distribution of insects is so wide that no other class of animals can compare with it, and it is almost all over the earth. From the equator to the poles, from oceans, rivers to deserts, as high as Mount Everest, the roof of the world, down to a few meters deep in the soil, there are insects.

Such a wide distribution shows that insects have amazing adaptability and are the ecological basis for a wide variety of insect species.

Insects are the invertebrates of the invertebrate phylum Insecta in the animal kingdom, the largest group of species and numbers of all organisms, and are the most abundant animals in the world, with more than 1 million species discovered. Its basic characteristics are the body with three segments: head, chest, abdomen, two pairs of wings and three pairs of feet; 1 pair of antennae cephalic, bones wrapped around the outside of the body; The form of life is varied, and it is spread all over the world. Insects are constructed differently from vertebrates in that their bodies are not supported by an endoskeleton and are covered with a shell made of chitin.

This shell is divided into sections to facilitate movement, like a knight's armor. Insects play an important role in the ecosystem. Insect flowers need the help of insects in order to spread pollen.

And honey collected by bees is also one of people's favorite foods.