The descriptive text, below the map, is from the Cornish Red Data Book (2009). The map on this web page depicts the organisms distribution and shows the records made pre-2000 and those made since.
Range & Status
Fairly widely scattered across Britain, but has become increasingly scarce and all modern records are from the south-east.
One old record for Cornwall.
Habitat & Ecology
A stem-feeder, mainly on Hedge Mustard Sisymbrium officinale ; also on Brassica spp. and possibly other Cruciferae on coastal sites generally.
Disturbance of stands of foodplants.
I.J. Bennallick, S. Board, C.N. French, P.A. Gainey, C. Neil, R. Parslow, A. Spalding and P.E. Tompsett. eds. 2009. Red Data Book for Cornwall and the Isles of Scilly. 2nd Edition.Croceago Press.
The Cornish Red Data Book Project was led by the Cornwall and Isles of Scilly Federation for Biological Recorders (CISFBR). The full text and species accounts (minus the maps) are available on the CISFBR website.