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Sticker of Chestnut weevil
Bug card No. 0869 of 4,939

Chestnut weevil

Curculio elephas
Eats: PlantsBeetlesForests and woods6 legs

The chestnut weevil is a beetle with a very long, thin snout, a bit like a tiny elephant's trunk. The mother uses it to drill a hole into a chestnut. She lays her egg inside, and the baby grows up eating the nut.

Lives in
Europe, in chestnut and oak woods and orchards
Top speed
about 0.1 km/h (0.06 mph)
On foot, estimate
Can it hurt you?
Harmless
Harmless to people. It only harms chestnuts.
What does it eat?
The grown-up beetle eats chestnut leaves. Its grub eats the inside of chestnuts and acorns.
For real!Photo of Chestnut weevil
Picture by gailhampshire from Cradley, Malvern, U.K. CC BY 2.0, via Wikimedia Commons.

How fast is it?

cool stuff

Fun facts

1

Its scientific name elephas means elephant, because of its long snout.

2

Its eggs hatch in only five to seven days.

3

When the chestnut falls, the grub chews its way out and digs into the soil.

4

Some grubs wait in the ground for several years before they become beetles.

5

In some places, up to 9 out of 10 chestnuts can have a grub inside.

you asked

Most asked questions about Chestnut weevil

?Why is there a worm in my chestnut?

It is probably a chestnut weevil grub. The mother beetle laid an egg inside the nut.

?Is the chestnut weevil harmful?

It is harmless to people, but it can spoil many chestnuts.

For bug experts

Scientific name
Curculio elephas
Group
Beetles
Family
Curculionidae
Classification
Insecta > Coleoptera > Curculionidae
Lives on
Europe

Where the facts come from

  1. Curculio elephas (Wikipedia, CC BY-SA 4.0): what it looks like, where it lives, what it eats, sizes and fun facts, retold in simple words.
  2. Picture by gailhampshire from Cradley, Malvern, U.K. CC BY 2.0, Wikimedia Commons. The sticker of this bug is drawn from this picture.

If we got something wrong, sorry, we are bug fans, not a science journal. Tell us at [email protected] and we will fix it.

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More from the same group: Beetles

Also at home here: Forests and woods

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