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Sticker of Pig louse
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Pig louse

Haematopinus suis

The pig louse is a little flat bug that lives on pigs and nowhere else. It is one of the biggest lice there is, big enough to see without a magnifying glass. It holds on to pig hair with strong claws and drinks the pig's blood.

Lives in
On pigs on farms, for example in Europe and North America
Length
5 to 6 mm (0.2 to 0.24 in)
Top speed
about 0.77 km/h (0.48 mph)
On foot, estimate
Can it hurt you?
Harmless
It does not live on people. It only lives on pigs, which it makes very itchy.
What does it eat?
It lives on pigs and drinks their blood several times a day. It eats nothing else.
For real!Photo of Pig louse
Picture by Daniel J. Drew. CC0, via Wikimedia Commons.

How big is it?

How long is it?

Pig louse about 6 mm long (0.24 in)A grain of rice about 6 mm (0.24 in)A toy building brick about 3.2 cm (1.3 in)
small enough to sit on your fingernailcould run across a dinner table in 4.7 secondsmoves 36 times its own body length every second

How big is Pig louse compared to YOU?

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How fast is it?

cool stuff

Fun facts

1

It is the only louse that lives on pigs.

2

Its tummy turns black when it is full of blood.

3

A mother lays about 90 eggs, called nits, glued to the pig's hair, and they hatch after about two weeks.

4

Its babies like to stay near the pig's head and ears.

5

If it falls off its pig, it can only live for 2 or 3 days.

you asked

Most asked questions about Pig louse

?Can pig lice live on people?

No. Pig lice live only on pigs.

?How big is a pig louse?

About 5 to 6 millimetres long, big enough to see with your own eyes.

?What does a pig louse eat?

Only pig blood.

For bug experts

Scientific name
Haematopinus suis
Named by
Linnaeus, 1758
Group
Other insects
Family
Haematopinidae
Classification
Insecta > Psocodea > Haematopinidae
Lives on
Europe, North America
Also known as
Hog louse

Where the facts come from

  1. Haematopinus suis (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 Daniel J. Drew. 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: Other insects

Also at home here: Houses and farms