Euthrix potatoria, commonly known as the drinker, is an orange-brown
moth in the family
Lasiocampidae. The species' common and scientific names derive from the larva's supposed drinking of drops of
dew. It is found in Europe, most frequently found in marshy places, fens and riversides but may also be seen in drier, grassy terrain. The larva (caterpillar) of this species grows to about 6 cm (2.3 in) in length and is hairy, striped and spotted, with distinctive tufts fore and aft. Caterpillars hibernate while young and resume feeding in the spring, pupating in a cocoon during the summer. This picture shows the top of an
E. potatoria caterpillar in
Keila, Estonia.
Photograph credit: Ivar Leidus