Ground Beetles of Ireland


Panagaeus cruxmajor

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Panagaeus cruxmajor
© Roy Anderson
Panagaeus cruxmajor
© Roy Anderson
Panagaeus cruxmajor
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(Maps updated 30th November 2009)
 

Panagaeus cruxmajor (Linnaeus, 1758)

Description: A spectacular (7.5-9mm), hairy black ground beetle with a conspicuous red cross on the elytra. Very hygrophilous, occurring at the margins of standing or slow-flowing water amongst rich vegetation. Local and rare.
 

World Distribution: Has a Eurasian Wide-temperate distribution (65) but is predominantly southern and eastern in Europe, north to the southern British Isles and southern Fennoscandia. Also in north Africa, Asia Minor and Siberia east to the Amur.
 

Irish Status: There are several modern Irish records for this rare species: Corofin, Clare (Owen, 1997); the east shore of Lough Mask, Mayo (Owen, 1997); and a turlough near Tuam, Galway (Speight et al., 1983). Older records for Corofin and Finlough, Clare and for Menlough and Portumna, Galway are given by Speight et al. (1983). It has declined in Britain and northern parts of its European range in recent decades.
 

Ecology: Hygrophilous on the well-vegetated, muddy margins of lakes and rivers. In Ireland, muddy turloughs are also occupied.