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Sticker of Little stag beetle
Bug card No. 2643 of 4,939

Little stag beetle

Dorcus rectus
Eats: WoodBeetlesForests and woods6 legs

The little stag beetle lives in East Asia. It has a red shell, and the males have big jaws that look like the antlers of a deer. The males use those jaws to fight each other.

Lives in
East Asia: China, Korea, Japan and Russia, in woods
Top speed
about 0.4 km/h (0.25 mph)
On foot, estimate
Can it hurt you?
Harmless
Harmless, but a male may pinch with his jaws if you pick him up. Best to look and not touch.
What does it eat?
Like other stag beetles, its larvae grow up inside old, rotting wood.
For real!Photo of Little stag beetle
Picture by takato marui. CC BY-SA 2.0, via Wikimedia Commons.

How fast is it?

cool stuff

Fun facts

1

Its red shell helps scientists tell it apart from a very similar stag beetle.

2

The males do not all have the same jaws. They come in three different jaw shapes, which is very rare in the animal world.

3

Only one other kind of stag beetle is known to have males with three jaw shapes like this.

4

The big jaws of the males are weapons for wrestling with other males.

you asked

Most asked questions about Little stag beetle

?Do little stag beetles bite?

A male can pinch with his big jaws if you hold him, so it is best to just watch.

?What are the big jaws of a stag beetle for?

The males use them as weapons when they fight other males.

For bug experts

Scientific name
Dorcus rectus
Group
Beetles
Family
Lucanidae
Classification
Insecta > Coleoptera > Lucanidae
Lives on
Asia

Where the facts come from

  1. Dorcus rectus (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 takato marui. CC BY-SA 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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