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Sticker of Pacific beetle cockroach
Bug card No. 3199 of 4,939

Pacific beetle cockroach

Diploptera punctata

The Pacific beetle cockroach is a cockroach that looks a bit like a beetle. It is one of the very few cockroaches that give birth to live babies instead of laying eggs. The mother even makes a kind of milk to feed them.

Lives in
Australia, India, Myanmar, China, Fiji and Hawaii
Top speed
about 3 km/h (1.9 mph)
On foot, estimate
Can it hurt you?
Harmless
Harmless to people. If an animal attacks it, it squirts a nasty-smelling liquid to scare it off.
What does it eat?
Like other cockroaches, it eats bits of plants and other leftovers. Its babies get special milk from their mother before they are born.
For real!Photo of Pacific beetle cockroach
Picture by Peterwchen. CC BY-SA 4.0, via Wikimedia Commons.

How fast is it?

cool stuff

Fun facts

1

Its milk is made of tiny crystals and is very rich in food.

2

The grown-ups can squirt a stinky chemical from little holes on their sides to keep enemies away.

3

Its babies have no wings, but the grown-ups do.

4

The male is smaller than the female.

you asked

Most asked questions about Pacific beetle cockroach

?Do cockroaches make milk?

This one does. The mother makes a rich milk to feed her babies while they grow inside her.

?Is the Pacific beetle cockroach harmful?

No. It is harmless to people, but it can squirt a stinky liquid at animals that attack it.

For bug experts

Scientific name
Diploptera punctata
Group
Cockroaches and termites
Family
Blaberidae
Classification
Insecta > Blattodea > Blaberidae
Lives on
Australia and Oceania, Asia

Where the facts come from

  1. Diploptera punctata (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 Peterwchen. CC BY-SA 4.0, 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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