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.

Xanthandrus comtus

Range & Status

Mainly widespread in southern England, but with remote records from the Isle of Man, Scotland and Wales. Numbers seem to fluctuate, but generally a scarce and elusive species. As a result of many recent records, status now revised from RDB2.

Regional Distribution

First recorded in Cornwall in 1880 and again in 1913 and 1935. There have been a

substantial number of records since 1990, from the Isles of Scilly (St. Martin' s, St. Mary' s and Tresco) in 1992, from the Penrose Estate on The Lizard between 1987-8, near Boscastle and in the east of the Caradon area.

Habitat & Ecology

Uncertain, occurring as adults most often between May and October at the edge of

woodland and scrub. The larvae feed on micro-moth caterpillars.


Loss of woodland and shading of rides.


Penrose is National Trust land managed for invertebrate conservation.


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.

Cornish Biodiversity Network. 2017.