The Drinker - Euthrix potatoria

Alternative names
Drinker Moth

Wingspan 45-65 mm. The yellowish females are slightly larger than the orange-brown male but both sexes usually show the two distinctive white spots on the forewing.

Identification difficulty

Most frequent in marshy places and riversides but also in drier grassy terrain.

When to see it

Flying at night, in July and August, the males especially are attracted to light.

Life History

This species gets its English (and Latin) name from the habits of the caterpillar which is supposed to have a liking for drops of dew. Grasses and reeds form the bulk of the foodplants.

UK Status

The species is fairly common in the southern half of Britain. In a recent survey to determine the status of all macro moths in Britain this species was classified as common.

VC55 Status

Fairly common in Leicestershire and Rutland, but possibly declining. L&R Moth Group status = A (common and resident)

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Leicestershire & Rutland Map


Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015

UK Map