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Sticker of Striped thistle longhorn beetle
Bug card No. 4214 of 4,939

Striped thistle longhorn beetle

Agapanthia cardui
Name means: “named after the thistle it likes to eat”
Eats: PlantsBeetlesGardens and meadows6 legs

The striped thistle longhorn beetle is a slim little beetle with very long feelers. It climbs around on tall meadow plants in late spring and early summer. Its favourite food is the prickly thistle.

Lives in
Most of Europe and parts of Asia, in meadows and fields with thistles
Length
0.6 to 1.4 cm (0.24 to 0.55 in)
Top speed
about 0.3 km/h (0.19 mph)
On foot, estimate
Can it hurt you?
Harmless
Harmless. It does not sting, so you can watch it climb up a plant stem.
What does it eat?
It eats many kinds of soft plants, most of all thistles. It also nibbles on sage and nettles.
For real!Photo of Striped thistle longhorn beetle
Picture by Didier Descouens. CC BY-SA 4.0, via Wikimedia Commons.

How big is it?

How long is it?

Striped thistle longhorn beetle about 1.4 cm long (0.55 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 2.5 grains of rice in a rowcould run across a dinner table in 12 seconds

How big is Striped thistle longhorn beetle compared to YOU?

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cool stuff

Fun facts

1

Its second name, cardui, comes from the scientific name of the thistle it loves to eat.

2

The grown-up beetles can be seen from April to July.

3

It goes from egg to grown-up beetle in just one year.

4

It is spreading to new places. In May 2018 it was found in England for the first time.

you asked

Most asked questions about Striped thistle longhorn beetle

?What does the striped thistle longhorn beetle eat?

Soft plants, most of all thistles. It also eats sage and nettles.

?How big is the striped thistle longhorn beetle?

Its body is about 6 to 14 millimetres long, but its feelers make it look much longer.

For bug experts

Scientific name
Agapanthia cardui
Group
Beetles
Family
Cerambycidae
Classification
Insecta > Coleoptera > Cerambycidae
Lives on
Europe, Asia

Where the facts come from

  1. Agapanthia cardui (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 Didier Descouens. CC BY-SA 4.0, 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

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