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Sticker of Madagascar hissing cockroach
Bug card No. 0869 of 1,500

Madagascar hissing cockroach

Gromphadorhina portentosa
Eats: PlantsCockroaches and termitesRainforests and jungles6 legs

The Madagascar hissing cockroach is a giant brown cockroach as long as a grown-up's finger. It has no wings at all. When something scares it, it makes a loud hiss, a bit like a snake.

Lives in
The island of Madagascar, in rotting logs in the forest
Length
5 to 7.5 cm (2 to 3 in)
Top speed
about 4.7 km/h (2.9 mph)
On foot, estimate
Can it hurt you?
Harmless
Harmless. It cannot bite you or sting, and it is a popular pet.
What does it eat?
It eats mostly plant food, like fallen fruit and rotting leaves on the forest floor.
For real!Photo of Madagascar hissing cockroach
Picture by Almabes at English Wikipedia. Public domain, via Wikimedia Commons.

How big is it?

How long is it?

Madagascar hissing cockroach about 7.5 cm long (3 in)A toy building brick about 3.2 cm (1.3 in)A crayon about 9 cm (3.5 in)A banana about 18 cm (7.1 in)
as long as 2.5 toy building bricks in a rowcould run across a dinner table in 0.8 seconds

How big is Madagascar hissing cockroach compared to YOU?

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How fast is it?

cool stuff

Fun facts

1

It hisses by pushing air out through the tiny breathing holes on its body.

2

The males have bumps on their backs and hiss at each other when they argue.

3

It is a great climber and can even walk up smooth glass.

4

The mother keeps her eggs inside her body, and the babies come out alive.

5

Tiny mites live on it and share its food, but they do not hurt it.

you asked

Most asked questions about Madagascar hissing cockroach

?Why does the Madagascar cockroach hiss?

To scare away animals that want to eat it. It cannot fly away, so a loud hiss is its best trick.

?Is the hissing cockroach dangerous?

No. It is harmless and many people keep it as a pet.

?How long does a hissing cockroach live?

In captivity it can live up to 5 years.

For bug experts

Scientific name
Gromphadorhina portentosa
Group
Cockroaches and termites
Family
Blaberidae
Classification
Insecta > Blattodea > Blaberidae
Lives on
Africa
Also known as
Hissing cockroach, Malagasy hissing cockroach, Hisser

Where the facts come from

  1. Madagascar hissing cockroach (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 Almabes at English Wikipedia. Public domain, 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: Cockroaches and termites

Also at home here: Rainforests and jungles