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Sticker of Telephone-pole beetle
Bug card No. 1336 of 1,500

Telephone-pole beetle

Micromalthus debilis
Eats: WoodBeetlesForests and woods6 legs

The telephone-pole beetle is a tiny beetle whose babies live inside old, wet, rotting wood. The grown-up beetle is dark brown with big bulging eyes, but it is very rare to see one. Almost all of its life happens as a little white larva hidden in the wood.

Lives in
First from the eastern United States, now carried with wood to many countries
Top speed
about 0.5 km/h (0.31 mph)
On foot, estimate
Can it hurt you?
Harmless
Harmless to people. It can damage old wooden poles and beams, but it cannot hurt you.
What does it eat?
Its larvae chew tunnels through damp, rotting oak and chestnut logs and eat the wood as they go.
For real!Photo of Telephone-pole beetle
Picture by Enrico Ruzzier & Andrea Colla. CC BY 4.0, via Wikimedia Commons.

How fast is it?

cool stuff

Fun facts

1

It is the last living member of its whole beetle family. All its other relatives died out long ago.

2

Its babies can have babies of their own while they are still larvae, without ever growing up.

3

Grown-up beetles appear so rarely that scientists call them ghost adults.

4

Its relatives have been found trapped in old amber from millions of years ago.

5

It got its name because its larvae can live in wooden poles and other wooden buildings.

you asked

Most asked questions about Telephone-pole beetle

?Why is it called the telephone-pole beetle?

Its larvae can live inside wooden poles and beams and slowly weaken them.

?Is the telephone-pole beetle dangerous?

No, not to people. It only eats rotting wood.

?What does the telephone-pole beetle eat?

Its larvae eat damp, rotting oak and chestnut wood.

For bug experts

Scientific name
Micromalthus debilis
Named by
LeConte, 1878
Group
Beetles
Family
Micromalthidae
Classification
Insecta > Coleoptera > Micromalthidae
Lives on
North America, South America, Europe, Africa, Asia

Where the facts come from

  1. Telephone-pole beetle (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 Enrico Ruzzier & Andrea Colla. CC BY 4.0, 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