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Sticker of Tanbark borer
Bug card No. 4285 of 4,939

Tanbark borer

Phymatodes testaceus
Eats: WoodBeetlesForests and woods6 legs

The tanbark borer is a slim longhorn beetle with long feelers. It comes in different colours, which is why one of its names says violet. Its babies grow up under the bark of trees.

Lives in
Europe, North Africa, Syria, Japan and North America, in forests and woodpiles
Length
0.6 to 1.6 cm (0.24 to 0.63 in)
Top speed
about 0.32 km/h (0.2 mph)
On foot, estimate
Can it hurt you?
Harmless
Harmless to people. Its larvae can damage trees.
What does it eat?
Its larvae live in and under the bark of leafy trees and eat the wood there.
For real!Photo of Tanbark borer
Picture by Donald Hobern from Copenhagen, Denmark. CC BY 2.0, via Wikimedia Commons.

How big is it?

How long is it?

Tanbark borer about 1.6 cm long (0.63 in)A grain of rice about 6 mm (0.24 in)A toy building brick about 3.2 cm (1.3 in)A crayon about 9 cm (3.5 in)
as long as 2.5 grains of rice in a rowcould run across a dinner table in 11 seconds

How big is Tanbark borer compared to YOU?

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How fast is it?

cool stuff

Fun facts

1

Its eggs are only about 1 millimetre long.

2

Its larvae can be up to about 1.8 centimetres long.

3

In warm places it grows up in one year, but in the cold north it takes two.

4

The larvae turn into pupae in spring.

you asked

Most asked questions about Tanbark borer

?Is the tanbark borer harmful?

It is harmless to people, but its larvae can damage leafy trees.

?How big is the tanbark borer?

The beetle is about 6 to 16 millimetres long.

For bug experts

Scientific name
Phymatodes testaceus
Group
Beetles
Family
Cerambycidae
Classification
Insecta > Coleoptera > Cerambycidae
Lives on
Europe, Africa, Asia, North America
Also known as
Violet tanbark beetle

Where the facts come from

  1. Phymatodes testaceus (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 Donald Hobern from Copenhagen, Denmark. CC BY 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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