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.

Tetramesa hyalipennis - a chalcid

Range & Status

Hymenoptera: Eurytomidae: Chalcidoidea; Common in UK.

Regional Distribution

VC1: SW87 The Gannel, in 1988 and SW62 Loe Bar, in 2008. Local in Cornwall, but may have been overlooked.

Habitat & Ecology

Associated species: Common Couch-grass Elytria repens and Sand Couch-grass E. juncea subsp. boreoatlantica . The Gall causes the shoot tip to produce overlapping leaves and to look like a miniature cigar. ' Tetramesa spp. are highly host specific, usually restricted to one genus or species of grass' (Redfern & Shirley 2002).




Loe Bar is on National Trust land.


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.