Bug Wiki
Sticker of Red poplar leaf beetle
Bug card No. 1124 of 1,500

Red poplar leaf beetle

Chrysomela populi
Eats: PlantsBeetlesForests and woods6 legs

The red poplar leaf beetle is round like a ladybird, with bright red wing cases and a black head. But it has no spots, just a little black mark at the top. It lives on poplars and willows and munches their young leaves.

Lives in
Most of Europe and across Asia to China and Japan, in forests and meadows with poplars and willows
Length
0.9 to 1.3 cm (0.35 to 0.51 in)
Top speed
about 0.47 km/h (0.29 mph)
On foot, estimate
Can it hurt you?
Harmless
Harmless to people. If you pick it up, it may leave a smelly red drop on your finger.
What does it eat?
Both the beetles and their larvae eat young leaves of poplars and willows.
For real!Photo of Red poplar leaf beetle
Picture by Hectonichus. CC BY-SA 3.0, via Wikimedia Commons.

How big is it?

How long is it?

Red poplar leaf beetle about 1.3 cm long (0.51 in)A grain of rice about 6 mm (0.24 in)A toy building brick about 3.2 cm (1.3 in)
as long as 2 grains of rice in a rowcould run across a dinner table in 7.7 seconds

How big is Red poplar leaf beetle compared to YOU?

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

How fast is it?

cool stuff

Fun facts

1

When it is in danger, it oozes a red, smelly liquid made from the medicine-like stuff in willow leaves.

2

Its larvae are white or light grey with black dots.

3

It spends the winter under bark and fallen leaves and wakes up around April.

4

Lots of these beetles can eat so many leaves that young poplar trees stop growing well.

5

Males fight other males with their jaws to win a female.

you asked

Most asked questions about Red poplar leaf beetle

?Is the red poplar leaf beetle a ladybird?

No. It looks a bit like a red ladybird, but it is a leaf beetle with no spots that eats leaves.

?What does the red poplar leaf beetle eat?

Young leaves of poplars and willows.

?How big is the red poplar leaf beetle?

About 9 to 13 millimetres long. Females are a little bigger.

For bug experts

Scientific name
Chrysomela populi
Named by
Linnaeus, 1758
Group
Beetles
Family
Chrysomelidae
Classification
Insecta > Coleoptera > Chrysomelidae
Lives on
Europe, Asia
Also known as
Poplar leaf beetle

Where the facts come from

  1. Chrysomela populi (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 Hectonichus. 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 [email protected] and we will fix it.

More from the same group: Beetles

Also at home here: Forests and woods