Description: Wingspan 32-40 mm. Forewings are heavily mottled light and dark grey. Antemedian and postmedian lines are indistinct. The stigmata are white and finely outlined in black. Hindwings white with fine brown veining. Unknown in N. Ireland. Skinner gives April until early June as the normal flight period in Britain.

World Distribution: Throughout western Europe on moors and heaths from Spain to the Arctic Circle.

Irish Distribution: The Irish distribution of this upland species extends from Sligo to Cork. The only N. Irish record is from Antrim. In Britain it has a northern distribution and confined to Scotland.

Ecology: A moorland species that apparently rests by day on rocks, old stone walls and fences. Adults are attracted to light and also to flowers. The larvae feed from July to September on Bog Myrtle Myrica gale, Heather Calluna vulgaris, birch Betula spp. willow Salix spp. and plantain Plantago spp. It overwinters as a pupa.

Key Identification Features:

• Mottled appearance of forewings
• White stigmata outlined with black
• Bright white hindwings

Distribution Map from NBN: Acronicta euphorbiae at National Biodiversity Network mapping facility, data for UK.

iNaturalist: Acronicta euphorbiae at iNaturalist World Species Observations database.