Scientific name: Siona lineata
Late May to early July. A protected species only found in some parts of England. The white or cream wings have black veins and blackish banding on the underside of the wings.
Readily disturbed from vegetation by day and nectars in sunshine. Flies from dusk and comes to light.
When at rest the wings are held flat but sometimes when feeding or temporarily resting at flowers the wings can be closed or partly closed over it's back like a butterfly.
Overwinters as a larva, becoming fully fed in May. Pupates within a cocoon attached to blades or stems of grass.
Size and Family
- Family – Thorns, Beauties and allies ( Ennomines )
- Small / Medium Sized
- Wingspan Range - 38-48mm
- UK BAP: Priority species
- Fully protected in Great Britain
- Rare (Red Data Book)
Caterpillar Food Plants
Marjoram (Origanum vulgare), Black Kapweed (Centaurea nigra), Common Brid's-foot-trefoil (Lotus corniculatus) and probably other herbs.
Longer-turfed, fairly herb-rich chalk grassland, characterised by the presence of Tor-grass (Brachypodium pinnatum).
- Countries – England
- Now restricted to a small number of sites in central Kent. Formerly reported from a few other parts of southern England
- Distribution Trend Since 1970’s = Britain: Stable