Description: Wingspan 29-34mm. Wings generally dark with an intricate pattern of white lines and dark makings with a dark central band. The central band is fragmented and interrupted with fine white lines. From the beginning of May to early September.

World Distribution: Northern and central Europe and Asia to eastern Siberia.

Irish Distribution: Widespread across the southern half of the province. There have been no records from north of Lough Neagh since the 1970s when it was recorded at Banagher Glen NNR, Londonderry. Increased fieldwork in the south has produced new records from well-trapped localities such as Rostrevor Oakwood NNR and Castlewellan Forest Park, Down, Gosford Forest Park, Armagh, Crom, Garvary Wood and Gortmaconnel Rock, Fermanagh and Rehaghy Mountain, Tyrone. One can only assume its scarcity further north is due to limited fieldwork here in recent years; increased trapping effort may discover other colonies, especially in areas where its foodplants grow abundantly.

Ecology: A species that occurs in a variety of habitats including woodland margins, clearings and bogs. Adults are attracted to light and appear frequently in small numbers. The larvae feed on willowherbs Epilobium spp. It overwinters as a pupa.

Key Identification Features:

• Central band of forewings normally split with series of white lines
• Pale, whitish brown hindwings

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

iNaturalist: Ecliptopera silaceata at iNaturalist World Species Observations database.