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73.042 ~ 2286 ~ Light Knot Grass ~ Acronicta menyanthidis menyanthidis
UK Status

Resident. Local N,W,EC.

Montgomeryshire Status

A scarce species, but probably under recorded in its moorland habitat.

Wingspan :  M & F, 34-42mm.

Confusion species

Scarce Dagger.
Flight time (Montgomeryshire)


Moorland and heathland, especially the wetter areas.


Mainly low growing woody plants.

Lifestage data

Overwinters as a pupa in a cocoon in the leaf litter. Larva June-September.
Montgomeryshire photos

Photo by PB, 22nd May 2012, Morben ISAF

Photo by GBC, 13th June 2014, Lake Vyrnwy