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Sticker of Plague soldier beetle
Bug card No. 1067 of 1,500

Plague soldier beetle

Chauliognathus lugubris
Eats: Nectar and pollenBeetlesGardens and meadows6 legs

The plague soldier beetle is a flat beetle with shiny olive green wing cases and a bright yellow-orange stripe behind its head. In spring it gathers in huge crowds on trees and bushes. A crowd can have hundreds of thousands of beetles.

Lives in
South-east Australia, and sometimes the south-west, on shrubs and trees
Length
1.5 cm (0.59 in)
Top speed
about 0.5 km/h (0.31 mph)
On foot, estimate
Can it hurt you?
Harmless
Harmless. Even a big swarm of them will not hurt you.
What does it eat?
The grown-ups are thought to eat pollen and nectar. The larvae live in the soil and probably hunt small soft creatures.
For real!Photo of Plague soldier beetle
Picture by Mike Dickison. CC BY 4.0, via Wikimedia Commons.

How big is it?

How long is it?

Plague soldier beetle about 1.5 cm long (0.59 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 7.2 seconds

How big is Plague soldier beetle compared to YOU?

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How fast is it?

cool stuff

Fun facts

1

Under its green wing cases it hides a yellow-orange belly.

2

The beetles swarm together to find mates and food.

3

You see them most in spring and early summer.

4

A grown-up beetle lives for about two to three months.

you asked

Most asked questions about Plague soldier beetle

?Are plague soldier beetles dangerous?

No. They do not bite or sting people, even when there are thousands of them.

?Why do plague soldier beetles swarm?

They gather in big groups on plants to find mates and to eat.

?How big is a plague soldier beetle?

It grows up to about 1.5 centimetres long.

For bug experts

Scientific name
Chauliognathus lugubris
Group
Beetles
Family
Cantharidae
Classification
Insecta > Coleoptera > Cantharidae
Lives on
Australia and Oceania
Also known as
Green soldier beetle, Banana bug

Where the facts come from

  1. Chauliognathus lugubris (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 Mike Dickison. 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 [email protected] and we will fix it.

More from the same group: Beetles

Also at home here: Gardens and meadows