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Euthrix potatoria
The wingspan is 45–65 mm. The moth flies from June to August depending on the location. The larvae feed on various grasses and reeds. The species' common and scientific names derive from the larva's supposed drinking of drops of dew Description 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.
Habitat Most frequent in marshy places and riversides but also in drier grassy terrain.