Eucalyptus longhorn borer
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.

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Fun facts
A boy's feelers are about 3 centimetres long, longer than a girl's.
It flies in a zigzag when it is following the smell of a tree.
In Australia it mostly lives in trees that are already broken or dying.
It travelled to many countries along with eucalyptus trees and wood.
It is busy in the warm evening hours, when it is above 15 degrees.
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
- 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.
- 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.