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Sticker of Eucalyptus longhorn borer
Bug card No. 0469 of 1,500

Eucalyptus longhorn borer

Phoracantha semipunctata
Eats: WoodBeetlesForests and woods6 legs

The eucalyptus longhorn borer is a long beetle in dark brown and cream, with a zigzag line across its back. Its feelers are as long as its whole body or even longer. It comes out in the evening and uses its feelers to smell its way to eucalyptus trees.

Lives in
Australia, and now many other countries where eucalyptus trees grow
Length
1.5 to 2.3 cm (0.59 to 0.91 in)
Top speed
about 0.38 km/h (0.24 mph)
On foot, estimate
Can it hurt you?
Harmless
Harmless to people, but it can badly damage eucalyptus trees.
What does it eat?
Its babies grow inside eucalyptus trees and eat the wood. The grown-up beetles feed on pollen and nectar.
For real!Photo of Eucalyptus longhorn borer
Picture by dhobern. CC BY 2.0, via Wikimedia Commons.

How big is it?

How long is it?

Eucalyptus longhorn borer about 2.3 cm long (0.91 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 4 grains of rice in a rowcould run across a dinner table in 9.5 seconds

How big is Eucalyptus longhorn borer compared to YOU?

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

How fast is it?

cool stuff

Fun facts

1

A boy's feelers are about 3 centimetres long, longer than a girl's.

2

It flies in a zigzag when it is following the smell of a tree.

3

In Australia it mostly lives in trees that are already broken or dying.

4

It travelled to many countries along with eucalyptus trees and wood.

5

It is busy in the warm evening hours, when it is above 15 degrees.

you asked

Most asked questions about Eucalyptus longhorn borer

?What does the eucalyptus longhorn borer eat?

Its babies eat the wood inside eucalyptus trees. Grown-ups eat pollen and nectar.

?How big is the eucalyptus longhorn borer?

It is about 1.5 to 2.3 centimetres long, not counting its long feelers.

?Is the eucalyptus longhorn borer dangerous?

Not to people, but it can kill eucalyptus trees.

For bug experts

Scientific name
Phoracantha semipunctata
Group
Beetles
Family
Cerambycidae
Classification
Insecta > Coleoptera > Cerambycidae
Lives on
Australia and Oceania, Europe, Africa
Also known as
Australian eucalyptus longhorn

Where the facts come from

  1. Phoracantha semipunctata (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 dhobern. CC BY 2.0, 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