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2150 ~ Grey Arches ~ Polia nebulosa
UK Status

Resident. Common

Montgomeryshire Status

Resident. A fairly common species that is quite well distributed across the county.

Wingspan :  M & F, 46-58mm.

Confusion species

Great Brocade, Silvery Arches.

Flight time (Montgomeryshire)


Broadleaved woodland.


Woody plants such as bramble, honeysuckle, birch, sallow and hazel. It has also been found on dock.

Lifestage data

Overwinters as a part grown larva in the leaf litter. Larva August-May, feeding at night. Pupates in a cocoon on or just under the soil.
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Montgomeryshire photos

Photo by MDH, 13th June 2009, Llanfyllin