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Sticker of Surinam cockroach
Bug card No. 1316 of 1,500

Surinam cockroach

Pycnoscelus surinamensis
Eats: PlantsCockroaches and termitesGardens and meadows6 legs

The Surinam cockroach is a dark brown to black cockroach with shiny, lighter brown wings. It has a pale white band at the front of its head shield. It loves to dig in loose, damp soil and compost.

Lives in
First from tropical Asia, now in warm places all around the world, and in heated greenhouses in colder countries
Length
1.8 to 2.5 cm (0.71 to 0.98 in)
Top speed
about 2.7 km/h (1.7 mph)
On foot, estimate
Can it hurt you?
Harmless
Harmless to people. It is a pest for plants in gardens and greenhouses, and it rarely comes into homes.
What does it eat?
At night it comes out and gnaws the soft parts of plants.
For real!Photo of Surinam cockroach
Picture by Steve Kerr. CC BY 4.0, via Wikimedia Commons.

How big is it?

How long is it?

Surinam cockroach about 2.5 cm long (0.98 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 4 grains of rice in a rowcould run across a dinner table in 1.3 secondsmoves 30 times its own body length every second

How big is Surinam cockroach compared to YOU?

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How fast is it?

cool stuff

Fun facts

1

Almost all of them are females. The mothers have babies without any father, and the babies are copies of their mum.

2

Its babies are born white and see-through. In 5 to 6 hours their skin hardens and turns shiny brown.

3

It burrows in soil, compost heaps and under rocks and dead branches.

4

It travels around the world hidden in the soil of potted plants.

5

It has wings, but it is a poor flyer.

you asked

Most asked questions about Surinam cockroach

?Is the Surinam cockroach a house pest?

Not usually. It sometimes ends up indoors in potted plants, but it lives mostly in soil outdoors and in greenhouses.

?How big is a Surinam cockroach?

It is about 1.8 to 2.5 centimetres long.

?Why are there no male Surinam cockroaches?

There are almost none. The females can have babies all by themselves.

For bug experts

Scientific name
Pycnoscelus surinamensis
Group
Cockroaches and termites
Family
Blaberidae
Classification
Insecta > Blattodea > Blaberidae
Lives on
Asia, Africa, North America, South America, Australia and Oceania, Europe
Also known as
Greenhouse cockroach

Where the facts come from

  1. Surinam 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 Steve Kerr. 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 hello@bugwiki.app and we will fix it.

More from the same group: Cockroaches and termites

Also at home here: Gardens and meadows