Range & Status
Throughout southern Britain but very localised.
Eight sites known, along the north coast, including Porth Joke and Glebe Cliff, Tintagel.
Habitat & Ecology
Associated with unimproved grasslands where management encourages good flowering and seed-set of Black Knapweed Centaurea nigra and other herbs, the larvae developing in the seed heads.
Heavy grazing, which leaves sward short, but also undergrazing which allows coarsening and scrub development.
The Glebe Cliff site is owned by The National Trust.