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Sticker of Stag beetle
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Stag beetle

Lucanus cervus
Name means: “named after a stag, a male deer, because the male's huge jaws look like antlers”
Eats: WoodBeetlesForests and woods6 legs

The stag beetle is the biggest beetle in Europe. It is black with reddish brown wing cases. The male has giant reddish jaws that look like the antlers of a deer, and he uses them to wrestle other males.

Lives in
Europe, except Ireland, and parts of West Asia, in old oak woods, parks and gardens
Length
3 to 7.5 cm (1.2 to 3 in)
Top speed
about 0.55 km/h (0.34 mph)
On foot, estimate
Can it hurt you?
Can bite or sting
The male's big jaws look scary but are too weak to hurt. The female can give a painful nip, so it is best to just watch.
What does it eat?
Its larvae eat rotting wood underground for years. The grown-ups only sip sweet juices like tree sap, nectar and juice from fallen fruit.
For real!Photo of Stag beetle
Picture by Orchi. CC BY-SA 3.0, via Wikimedia Commons.

How big is it?

How long is it?

Stag beetle about 7.5 cm long (3 in)A toy building brick about 3.2 cm (1.3 in)A crayon about 9 cm (3.5 in)A banana about 18 cm (7.1 in)
as long as 2.5 toy building bricks in a rowcould run across a dinner table in 6.5 seconds

How big is Stag beetle compared to YOU?

Just maths in your browser. Nothing is saved or sent anywhere.

How fast is it?

cool stuff

Fun facts

1

A stag beetle spends 3 to 7 years as a larva in rotting wood, but lives only a few weeks as a grown-up beetle.

2

The larva is blind, creamy white and curled like the letter C.

3

Larvae talk to each other by rubbing combs on their legs to make tiny sounds.

4

Males fight by trying to throw each other off a log or branch.

5

On summer evenings it flies slowly and clumsily with a low, buzzing hum.

you asked

Most asked questions about Stag beetle

?Can a stag beetle bite?

The male cannot really hurt you. The female can give a painful nip if you pick her up.

?How big is a stag beetle?

Males grow up to 7.5 centimetres long. Females are 3 to 5 centimetres.

?How long does a stag beetle live?

Most of its life, 3 to 7 years, is spent as a larva. The adult lives only a few weeks.

Myth buster

Myth: A male stag beetle can hurt you badly with his huge jaws.

Truth: No. The male's jaws are too weak to harm people. It is the smaller female that can give a painful nip.

For bug experts

Scientific name
Lucanus cervus
Named by
Linnaeus, 1758
Group
Beetles
Family
Lucanidae
Classification
Insecta > Coleoptera > Lucanidae
Lives on
Europe, Asia
Also known as
European stag beetle, Greater stag beetle

Where the facts come from

  1. Lucanus cervus (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 Orchi. CC BY-SA 3.0, Wikimedia Commons. The round sticker of this bug is cut from the same picture.

If we got something wrong, sorry, we are bug fans, not a science journal. Tell us at hello@bugwiki.app and we will fix it.

More from the same group: Beetles

Also at home here: Forests and woods