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Silhouette of a longhorn timber beetle

Beetles

Beetles form around 40% of all insects and are therefore the biggest insect group, with around 350,000 species in total. All beetles start life as grubs and then form a pupa and metamorphose into their adult form. Most adult beetles can fly, although a few, such as glow-worms and weevils, have lost the ability.

Scientific name: Coleoptera

Rank: Order

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Fossil types

Learn more about the other animals and plants that also form these fossils.

Amber Amber
Amber owes its existence to the defence mechanisms of certain kinds of tree. When the bark is punctured or infected, a sticky resin oozes out to seal the damage and sterilise the area.

About

The Coleoptera /koʊliːˈɒptərə/ order of insects is commonly called beetles. The word "coleoptera" is from the Greek κολεός, koleos, meaning "sheath"; and πτερόν, pteron, meaning "wing", thus "sheathed wing", because most beetles have two pairs of wings, the front pair, the "elytra", being hardened and thickened into a sheath-like, or shell-like, protection for the rear pair, and for the rear part of the beetle's body. The superficial consistency of most beetles' morphology, in particular their possession of elytra, has long suggested that the Coleoptera are monophyletic, but growing evidence indicates this is unjustified, there being arguments, for example, in favour of allocating the current suborder Adephaga their own order, or very likely even more than one.

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BBC News about Beetles

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