Elytron

Elytron is a term used in entomology to refer to the hardened forewing of certain insect orders, notably beetles (Coleoptera) and a few of the true bugs (Hemiptera); in beetles, elytra serve as protective coverings for the hindwings, which are used in flight.

Anatomy

An Elytron is a modified, hardened forewing of insects in the order Coleoptera, commonly known as beetles. The elytron does not aid in flight, but protects the delicate hindwings underneath, which are used for flight. In some beetles, the ability to fly has been lost, and the elytra have fused together to form a solid shield over the abdomen.

Function

The primary function of the elytron is protection. By covering the delicate hindwings, the elytron protects them from damage when the beetle is not flying. The elytron also helps to maintain moisture within the beetle's body and can help to control body temperature.

Variations

There are many variations in the shape, size, and color of elytra among the many species of beetles. Some beetles have elytra that are smooth and shiny, while others have elytra that are rough and dull. The color of the elytra can also vary widely, from plain black or brown to brightly colored or even metallic.

In Other Insects

In addition to beetles, a few other insects also have elytra. Some true bugs (Hemiptera) have a hardened forewing that is similar to an elytron. However, in these insects, the elytron is often only partially hardened, with the tip remaining flexible.

See Also

• Coleoptera
• Hemiptera
• Insect morphology

References

Elytron Resources
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