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.

Aplocnemus nigricornis - A malachite beetle

Range & Status

Very localised in Britain.

Regional Distribution

Discovered in Lanhydrock Park in 2003 and at Port Eliot Park in 2006.

Habitat & Ecology

Larvae feed on scolytid beetle larvae developing in freshly dead branches of old opengrown broadleaved trees. An old growth species largely confined to historic parklands.


Removal of large items of fallen deadwood; loss of older age classes of trees; failure to establish new generations of open-grown trees.


Lanhydrock Park is owned by The National Trust.


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.