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Sticker of Fringed diving beetle
Bug card No. 1771 of 4,939

Fringed diving beetle

Cybister fimbriolatus
Eats: Other bugs and small animalsBeetlesPonds, rivers and shores6 legs

The fringed diving beetle is a big beetle that lives in ponds and ditches. It swims under water like a little submarine. It is a hunter that chases other small water animals.

Lives in
North America, Central America and South America, in ponds and ditches
Top speed
about 1.8 km/h (1.1 mph)
Swimming, estimate
Can it hurt you?
Harmless
Harmless if you leave it in its pond. It is a wild hunter, so just watch it.
What does it eat?
It hunts other small water creatures, like water insects.
For real!Photo of Fringed diving beetle
Picture by Fredlyfish4. CC BY-SA 4.0, via Wikimedia Commons.

How fast is it?

cool stuff

Fun facts

1

It is busiest in summer.

2

It mostly hunts at night, but sometimes it is active in the day too.

3

The males have extra wide front feet, which help them hold on to a female.

4

Over the years scientists have given it at least seven different names.

you asked

Most asked questions about Fringed diving beetle

?What does the fringed diving beetle eat?

Other small water animals, such as water insects.

?Where does the fringed diving beetle live?

In ponds and ditches in North, Central and South America.

For bug experts

Scientific name
Cybister fimbriolatus
Named by
Say, 1823
Group
Beetles
Family
Dytiscidae
Classification
Insecta > Coleoptera > Dytiscidae
Lives on
North America, South America
Also known as
Giant diving beetle

Where the facts come from

  1. Cybister fimbriolatus (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 Fredlyfish4. 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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More from the same group: Beetles

Also at home here: Ponds, rivers and shores

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