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
Listed by Ball (1986) as pRDB3; though local, it can be abundant in forestry plantations where its foodplant occurs. It is very local in Britain, where it is restricted to Wales and the southern part of England; also found in Ireland). Recorded in northern and central Europe.
In Cornwall recorded only from Penlee Point (1993).
Habitat & Ecology
The adult flies in April and May in sunshine at the top of the trees on which the larvae
feed, most especially Grand Fir Abies grandis , Silver Fir Abies alba and Norway Spruce Picea abies .
The single record occurred on a Cornwall Wildlife Trust nature reserve.
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.