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Sticker of Drinker moth
Bug card No. 0422 of 1,500

Drinker moth

Euthrix potatoria
Name means: “potatoria means drinker, because people thought the caterpillar loved to drink drops of dew”
Eats: PlantsMothsPonds, rivers and shores6 legs

The drinker moth is a furry orange-brown or yellowish moth with two little white spots on each front wing. It got its funny name from its big hairy caterpillar. People long ago saw it dipping its head into water drops and thought it was a real drinker.

Lives in
Europe, in marshes, fens, riversides and grassy places
Wingspan
4.5 to 6.5 cm (1.8 to 2.6 in)
Top speed
about 18 km/h (11 mph)
Flying, estimate
Can it hurt you?
Harmless
Harmless. It is a gentle night moth.
What does it eat?
Its caterpillar eats grasses, sedges and reeds.
For real!Photo of Drinker moth
Picture by G.-U. Tolkiehn. CC BY 2.5, via Wikimedia Commons.

How big is it?

How wide are its wings?

Drinker moth wings about 6.5 cm tip to tip (2.6 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)
wings as wide as 2 toy building brickscould fly across a whole football pitch in 21 seconds

How big is Drinker moth compared to YOU?

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How fast is it?

cool stuff

Fun facts

1

Its caterpillar grows to about 6 centimetres long, as long as your finger.

2

The caterpillar is hairy, striped and spotted, with fluffy tufts at the front and back.

3

The little caterpillars sleep through the winter and start eating again in spring.

4

It flies at night from June to August, and the boys love to fly to lamps.

5

The boys have feelers like combs, and the girls have thinner, slightly jagged feelers.

you asked

Most asked questions about Drinker moth

?Why is it called the drinker moth?

Because people thought its caterpillar loved drinking drops of dew and water.

?Is the drinker moth caterpillar dangerous?

No, it is harmless, but it is very hairy, so it is best to just look at it.

?How big is the drinker moth?

Its wings are about 4.5 to 6.5 centimetres across. The girls are a bit bigger than the boys.

For bug experts

Scientific name
Euthrix potatoria
Named by
Linnaeus, 1758
Group
Moths
Family
Lasiocampidae
Classification
Insecta > Lepidoptera > Lasiocampidae
Lives on
Europe
Also known as
Drinker

Where the facts come from

  1. Euthrix potatoria (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 G.-U. Tolkiehn. CC BY 2.5, 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: Moths

Also at home here: Ponds, rivers and shores