Cornish Biodiversity Network  -  Supporting Wildlife Recording

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Cornish Red Data (2009)

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.

Yponomeuta rorrella - Willow Ermine

Range & Status

Mainly central and southern Europe. In Britain, mostly southern and eastern England. This is an occasional migrant that can become temporarily established (Emmet, 1996).

Regional Distribution

Recorded at light at Murrayton, near Looe (1995) and Gwavas (2001), but not necessarily permanently resident here.

Habitat & Ecology

Larvae feed on Willows Salix spp.


None known.




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.