Description: Wingspan 32-38 mm. Forewings usually pale grey but this varies. They are narrower than in similar species with a straight costa with conspicuous black markings between the stigmata. Hindwings are white with darker veining. August to mid-September.

World Distribution: Throughout Europe as far north as the Netherlands, south to Spain and Portugal.

Irish Distribution: Generally common and widely distributed throughout all counties including Rathlin Island.

Ecology: Recorded from woodlands, bogs and heaths. Adults appear sparingly at light, but visit flowers especially Heather Calluna vulgaris and Ragwort Senecio jacobaea. The larvae, overwinter and feed on various grasses from October to May.

Key Identification Features:

• Straight costa and the narrow forewings
• Black marks on forewings
• White hindwings

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

iNaturalist: Paradiarsia glareosa at iNaturalist World Species Observations database.