Ground Beetles of Ireland

Trechus rubens

Trechus rubens
Click on map to enlarge it in a new window
(Maps updated 30th November 2009)

Trechus rubens (Fabricius, 1792)

Description: A small (5-6.5mm) reddish-brown subterranean ground beetle. Found among leaves, under stones, etc. on riverbanks, lakeshores and on montane peat. Local.

World Distribution: A Eurasian Wide-Boreal species (35) found across north-west, northern and eastern Europe to the River Lena in Siberia and introduced into eastern North America.

Irish Status: Widely distributed in Ireland though rarely encountered.

Ecology: Said by some authors to be largely subterranean (Lindroth, 1985; Marggi, 1992), but the few Irish records give no indication of this. In Northern Ireland, it has been taken from moss in upland blanket peat and from litter on gravelly or sandy lakeshores and riverbanks.