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.

Cosmopterix orichalcea

Range & Status

Listed by Ball (1986) as pRDB3, but now known to be too widespread to qualify as a RDB species (A.M. Emmet, pers. comm.). Recorded (but not commonly) throughout Britain and in parts of Ireland. Found in central Europe.

Regional Distribution

In Cornwall recorded from Goss Moor (where it is abundant), Chyverton Woods, Luxulyan and St. Austell.

Habitat & Ecology

Associated with wet pasture and other wetland areas, where the larvae feed in mines

on Poaceae e.g. Common Reed Phragmites australis and Reed Canary-grass Phalaris arundinacea .


It was thought that the proposed dualling of the A30 across Goss Moor would cut across the main Cornish site for this species, but in fact the road has been constructed to the north of the main site.




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.