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.

Myrmedobia coleoptrata - A microphysid bug

Range & Status

Widespread in England, but largely southern in distribution.

Regional Distribution

This species is known solely from the Lizard area, with only two reports since 1980:

Mullion Cliff in 1989 (Alexander & Grove, 1991) and found at Kynance Cove by Peter

Hodge in 1998.

Habitat & Ecology

Its ecology is poorly known. It is a predatory species, feeding on aphids, etc, and occurring on tree trunks, in hedge bases, in ant nests, etc. Most English records are from woodland or well-wooded habitats, but in Cornwall it has only ever been found on rocky seacliffs. Shelter and humidity may be important. The females are flightless.




Mullion Cliff and Kynance Cover are within SSSI.


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.