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Sticker of Grass eggar
Bug card No. 1995 of 4,939

Grass eggar

Lasiocampa trifolii
Eats: PlantsMothsPonds, rivers and shores6 legs

The grass eggar is a big, furry moth that lives in the sand dunes along European coasts. It flies by day and also at night. The female is bigger than the male.

Lives in
Europe, in sand dunes by the sea
Wingspan
4 to 5.5 cm (1.6 to 2.2 in)
Top speed
about 16 km/h (9.9 mph)
Flying, estimate
Can it hurt you?
Harmless
Harmless. It does not bite or sting.
What does it eat?
Its caterpillars eat grasses, shrubs and leaves of trees such as oak, beech and poplar, and also heather.
For real!Photo of Grass eggar
Picture by Donkey shot. CC BY-SA 3.0, via Wikimedia Commons.

How big is it?

How wide are its wings?

Grass eggar wings about 5.5 cm tip to tip (2.2 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 1.5 toy building brickscould fly across a whole football pitch in 24 seconds

How big is Grass eggar compared to YOU?

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How fast is it?

cool stuff

Fun facts

1

Its eggs are laid on leaves close to the ground and hatch in the autumn.

2

The young caterpillars sleep through the winter and keep growing in spring.

3

The caterpillar spins its cocoon down on the ground.

4

At night the moths are drawn to lights.

you asked

Most asked questions about Grass eggar

?Where does the grass eggar live?

In Europe, mostly in sand dunes along the coast.

?What does the grass eggar caterpillar eat?

Grasses, shrubs, heather and leaves of trees like oak and beech.

For bug experts

Scientific name
Lasiocampa trifolii
Named by
Denis & Schiffermüller, 1775
Group
Moths
Family
Lasiocampidae
Classification
Insecta > Lepidoptera > Lasiocampidae
Lives on
Europe

Where the facts come from

  1. Lasiocampa trifolii (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 Donkey shot. CC BY-SA 3.0, 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: Moths

Also at home here: Ponds, rivers and shores

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