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Sticker of Hypericum pot beetle
Bug card No. 2313 of 4,939

Hypericum pot beetle

Cryptocephalus moraei
Eats: PlantsBeetlesGardens and meadows6 legs

The Hypericum pot beetle is a tiny shiny leaf beetle. It is mostly black, with yellow spots and reddish brown legs. You can tell boys and girls apart by their heads: the males have yellow heads.

Lives in
All over Europe, in meadows where St John's wort grows
Length
3 to 5 mm (0.12 to 0.2 in)
Top speed
about 0.29 km/h (0.18 mph)
On foot, estimate
Can it hurt you?
Harmless
Harmless. It does not bite or sting people.
What does it eat?
It eats St John's wort, a plant with bright yellow flowers.
For real!Photo of Hypericum pot beetle
Picture by Paul Braun. CC0, via Wikimedia Commons.

How big is it?

How long is it?

Hypericum pot beetle about 5 mm long (0.2 in)A grain of rice about 6 mm (0.24 in)
small enough to sit on your fingernailcould run across a dinner table in 12 seconds

How big is Hypericum pot beetle compared to YOU?

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How fast is it?

cool stuff

Fun facts

1

The males have a yellow head, while the females have a black head with two yellow dots.

2

It is only 3 to 5 millimetres long, smaller than a grain of rice.

3

Its wing covers have neat rows of tiny dents and a yellow spot at the end.

4

You can look for it from May to August.

5

Nature fans all over Europe help scientists by reporting when they spot one.

you asked

Most asked questions about Hypericum pot beetle

?What does the Hypericum pot beetle eat?

It eats St John's wort, a meadow plant with yellow flowers.

?How big is the Hypericum pot beetle?

Only 3 to 5 millimetres long, smaller than a grain of rice.

?When can I see it?

From May to August, on St John's wort plants.

For bug experts

Scientific name
Cryptocephalus moraei
Named by
Linnaeus, 1758
Group
Beetles
Family
Chrysomelidae
Classification
Insecta > Coleoptera > Chrysomelidae
Lives on
Europe

Where the facts come from

  1. Cryptocephalus moraei (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 Paul Braun. CC0, 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

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