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Sticker of Australian cockroach
Bug card No. 0076 of 1,500

Australian cockroach

Periplaneta australasiae

The Australian cockroach is a big brown cockroach with a bright yellow edge around its head shield. It also has pale yellow stripes on the sides of its wings. Funny enough, it does not really come from Australia.

Lives in
Warm places all over the world, often around houses
Length
2.3 to 3.5 cm (0.91 to 1.4 in)
Top speed
about 3.2 km/h (2 mph)
On foot, estimate
Can it hurt you?
Harmless
It does not bite or sting. It is a pest in houses, so leave it alone and tell a grown-up if you see one inside.
What does it eat?
It eats almost anything from plants and leftovers to rotting bits. It likes plants more than most of its cousins do.
For real!Photo of Australian cockroach
Picture by kbkash. CC0, via Wikimedia Commons.

How big is it?

How long is it?

Australian cockroach about 3.5 cm long (1.4 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 6 grains of rice in a rowcould run across a dinner table in 1.1 secondsmoves 25 times its own body length every second

How big is Australian cockroach compared to YOU?

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

How fast is it?

cool stuff

Fun facts

1

Scientists think it first came from Africa, not Australia.

2

It travelled around the world by hiding on ships and in goods.

3

It loves warmth and cannot stand the cold, but it can survive winter inside heated buildings.

4

It looks very much like the American cockroach, but it is a little smaller and has more yellow on it.

5

In warm weather it often lives outside around the walls of buildings and comes in looking for food.

you asked

Most asked questions about Australian cockroach

?Is the Australian cockroach from Australia?

No. Despite its name it probably comes from Africa. Today it lives in warm places all over the world.

?How big is an Australian cockroach?

It is about 2.5 to 3.5 centimetres long.

?What does the Australian cockroach eat?

Almost anything, but it likes plants more than other cockroaches do.

For bug experts

Scientific name
Periplaneta australasiae
Group
Cockroaches and termites
Family
Blattidae
Classification
Insecta > Blattodea > Blattidae
Lives on
Africa, Australia and Oceania, North America, South America, Asia, Europe

Where the facts come from

  1. Australian 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 kbkash. CC0, 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: Houses and farms