Beetles are the group of insects and are one of the most successful insects
in terms of surviving. There are more species of beetle than the species of plants.
There are more than 350,000 species of beetle living in this world. Beetles can
be seen in all the parts of the world expect Antarctica and most of the species
are found on land.
A beetle's head consists of two pairs one has one pair
of antennae and other has a pair of compound eyes. The thorax consists of two
pairs of wings and three pairs of legs as well. The abdomen includes the reproductive
organs of the beetles. They have three major body segments: the head, thorax,
and abdomen like other insects and is covered with a hard layer which protects
the body and internally supports all the organs.
The life span of a beetle
ranges from a few months in some species to more than 4 years in others. Adult
beetles range in size from 0.01 to almost 8 inches in body length, but antennae
of some are much longer than their bodies. Beetles usually have hard bodies. Most
beetles are dark brown or black, but many are red, blue, green, purple or a combination
of colors.
Different species of beetle have various varieties of strategies
to avoid being attacked by their enemies. Beetles feed on both plants and animals.
Most kinds of plants are eaten by some kind of beetle. Many beetles have certain
parts of the plant that they eat. Many agricultural, forestry, and household insect
pests are beetles and are also used to clean bones of remaining flesh.