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.

Sirocalodes quercicola - A weevil

Range & Status

Widespread in Britain, but very localised and increasingly rare.

Regional Distribution

A large population discovered in the species-rich arable fields at West Pentire Farm in 2003 (Alexander, 2004).

Habitat & Ecology

Associated with Fumitory Fumaria spp., the larvae feeding in galls formed on the lower stems; sites tend to be places with soil disturbance.


Conversion of arable land to pasture.


The West Pentire fields are owned and managed in-hand as an arable nature reserve 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.