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Sticker of Forest caterpillar hunter
Bug card No. 0528 of 1,500

Forest caterpillar hunter

Calosoma sycophanta

The forest caterpillar hunter is a big ground beetle with shiny metal-green wing cases. In the light its colours shimmer green, blue, copper and gold. Unlike most ground beetles, it climbs up into the trees to hunt.

Lives in
Europe, North Africa, the Near East and Asia. It was also brought to North America
Length
2.1 to 3.5 cm (0.83 to 1.4 in)
Top speed
about 1.7 km/h (1.1 mph)
On foot, estimate
Can it hurt you?
Harmless
Harmless to people. It is a helpful beetle, so let it get on with its hunting.
What does it eat?
It eats caterpillars, lots of them. Its babies hunt caterpillars too, especially hairy ones that harm trees.
For real!Photo of Forest caterpillar hunter
Picture by Thomas Huntke , Germany (the uploader). Contact through: http://www.huntke.de. CC BY-SA 3.0, via Wikimedia Commons.

How big is it?

How long is it?

Forest caterpillar hunter about 3.5 cm long (1.4 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 6 grains of rice in a rowcould run across a dinner table in 2.1 seconds

How big is Forest caterpillar hunter compared to YOU?

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

How fast is it?

cool stuff

Fun facts

1

Both the grown-up beetles and their babies live up in the trees.

2

It hunts in the daytime.

3

It loves caterpillars that eat oak and pine leaves, so it helps protect forests.

4

In 1905 people brought it from Europe to New England to fight a caterpillar that was eating the trees.

you asked

Most asked questions about Forest caterpillar hunter

?What does the forest caterpillar hunter eat?

Caterpillars, especially ones that eat tree leaves.

?How big is the forest caterpillar hunter?

About 2 to 3.5 centimetres long, a big beetle.

?Is the forest caterpillar hunter good for the garden?

Yes. It eats caterpillars that damage trees, so foresters are happy to have it.

For bug experts

Scientific name
Calosoma sycophanta
Group
Beetles
Family
Carabidae
Classification
Insecta > Coleoptera > Carabidae
Lives on
Europe, Africa, Asia, North America

Where the facts come from

  1. Calosoma sycophanta (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 Thomas Huntke , Germany (the uploader). Contact through: http://www.huntke.de. 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