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66.01 ~ 1640 ~ Drinker ~ Euthrix potatoria
UK Status

Resident. Common S,C,NW.

Montgomeryshire Status

A very common and widespread species, found throughout the county.

Wingspan :  M & F, 50-70mm.

Confusion species

Flight time (Montgomeryshire)


Most habitats.


A wide range of grasses and reeds.

Lifestage data

Overwinters as a small larva. Larva June-August. Pupates in the grass stems above ground in a papery cocoon. The cocoon is sometimes found under a log.
Montgomeryshire photos

Photo by PRW, 12th July 2006, Commins Coch

Photo by PRW, Nov 2011, Commins Coch
Pic shows larva just prior to hibernation.
Photo by PB, 5th June 2004, Cors Dyfi