What do insects have? Say more than 20 kinds.

butterfly

fly

mantis

cicada

moth

dragonfly

locust

mosquito

bedbug

aphid

cockroach

ant

gadfly

Fruit

ladybird

Silkworm,

mole cricket

, fireflies ....

Recent research shows that there may be 654.38+00 billion species of insects in the world, accounting for about 5% of all living things on earth. Shell dam? Why don't you do something? Millions of species, accounting for 2/3- 3/4 of the known species in the animal kingdom. It can be seen that 90% of the insect species in the world are unknown to us; According to the most conservative estimate, there are at least 3 million species of insects in the world, and there are still 2 million species of insects to be discovered, described and named. At present, about 1000 new species of insects are published every year in the world and are included in Zoology. Therefore, this magazine is a retrieval tool that researchers engaged in animal classification must consult.

Among the named insects, there are as many as 350,000 species of COLEOPTERA (Beetle), among which there are more than 60,000 species of weevil, which is 10 times that of mammals. Lepidoptera (butterflies and moths) comes next, with about 200,000 species. There are about 6.5438+0.5 million species of Hymenoptera (bees and ants) and Diptera (mosquitoes and flies). The figure below shows the relative number of known species in different groups in the animal kingdom.

There are not only many kinds of insects, but also many individuals of the same kind, some of whom are surprisingly large. An ant colony can have as many as 500 thousand individuals. A tree can have 654.38 million+aphids. In the forest, there are 654.38+ ten thousand jumping insects per square meter. When locusts broke out, the number of individuals could reach 70 ~1.200 million, the total weight was about1.250 ~ 3,000 tons, and the area covered by swarms could reach 500 ~ 1.200 hectares, which can be said to be a day's canopy coverage.