Beetle is a type of insect that goes into the order Coleoptera. The origin of the word coleoptera comes from the Greek word coeleos means veil and pteron means wings. So it can be concluded insects that have a veil on its wings.

Beetle is an insect species that has the most species, there are about 350,000 species. And even species of beetle continue to grow year after year. Where it can be estimated the species described and not described can reach 5 and 8 million.

The beetle has wings that are hard enough and thick that serves as a cover of the rear wing and protector for the body. The front wing is called the elitron.

When flying only the rear wing is working. While the front wing is not working. The beetle's mouth has a reliable type of bite and chewer. Likewise, the beetle head can be moved forward and back freely so it can turn into a muzzle.

Beetles have compound eyes and no single eyes. In
the abdomen there are 10 segments and on the sternum only part of the segment only visible.

When carefully considered, the protoraks and mandibles present in the enlarged male beetles are used to fight with fellow beetles or as a self-protection against other insects.

Beetles can live in all habitats, except in the polar regions and the sea. They can and can survive by adjusting to the living ecosystem.

They can consume from plants and fungi. And there are also some of their types that are useful for agriculture, such as beetle potatoes, cotton beetles.
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