description Drinker Moth Overview
The Drinker Moth, Euthrix potatoria, is a moth in the family Lasiocampidae found in parts of Europe. Its caterpillar is large and hairy and commonly feeds on grasses and other plants in damp habitats such as marshes and wet meadows. The English name refers to the reported habit of the caterpillar drinking droplets of dew, while the adult moth has brown wings and a stout body.
help Drinker Moth FAQ
Why is Euthrix potatoria called the Drinker Moth?
The name refers to the caterpillar's reported habit of drinking drops of dew from grass and other plants. The Latin species name potatoria also reflects that association. [UK Moths](https://www.ukmoths.org.uk/species/euthrix-potatoria/larva-7/)
Where should I look for a Drinker Moth?
It is strongly associated with damp grassland, fens, marshes, boggy heathland, reedbeds, and wet woodland. In Britain it is widespread in suitable habitat, especially in the southern half of the country.
When do adult Drinker Moths fly?
Adults are mainly seen in July and August, and males are often attracted to lights at night. The usual wingspan is about 45 to 65 millimetres. [UK Moths](https://www.ukmoths.org.uk/species/euthrix-potatoria/larva-7/)
What does the Drinker Moth caterpillar eat?
The hairy caterpillar feeds mainly on grasses and reeds, including common reed and reed canary-grass. It can grow to about 7 centimetres long before pupating. [Yorkshire Wildlife Trust](https://www.ywt.org.uk/wildlife-explorer/invertebrates/moths/drinker)
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