Scientific name: Siona lineata
From late May to early July
Readily disturbed from vegetation by day and nectars in sunshine. Flies from dusk and comes to light
Size and Family
- Family – Thorns, Beauties and allies ( Ennomines )
- Small / Medium Sized
- Wing Span Range (male to female) - 38-48mm
Conservation status
- UK BAP: Priority Species
- Fully protected in Great Britain
- Red Data Book
Caterpillar Description
Overwinters as a larva, becoming fully fed in May. Pupates within a cocoon attached to blades or stems of grass
Particular Caterpillar Food Plants
Marjoram (Origanum vulgare), Black Kapweed (Centaurea nigra), Common Brid's-foot-trefoil (Lotus corniculatus) and probably other herbs
Distribution
- 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
Habitat
Longer-turfed, fairly herb-rich chalk grassland, characterised by the presence of Tor-grass (Brachypodium pinnatum)




