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73.162 ~ 2321 ~ Dark Arches ~ Apamea monoglypha
UK Status

Resident. Common

Montgomeryshire Status

A common species, found throughout the county.

Wingspan :  M & F, 46-54mm.

Confusion species

Northern Arches and Crescent Striped.
Flight time (Montgomeryshire)


All habitats.



Lifestage data

Overwinters as a larva in a chamber amongst the grass roots. Larva August-June. Pupates under the soil.
Montgomeryshire photos

Photo by MDH, 12th July 2008, Llanfyllin

Photo by PMG, July 2022, Pendugwm Wood
Dark form