Ground Beetles of Ireland


Poecilus cupreus

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Poecilus cupreus
© Roy Anderson
Poecilus cupreus
© Roy Anderson
Poecilus cupreus
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(Maps updated 30th November 2009)
 

Poecilus cupreus (Linnaeus, 1758)

Description: 11-13mm long dull coppery-green predatory ground beetle living in damp meadows and lakeshores. Widespread but local, rarer in the north.
 

World Distribution: A Eurasian Wide-temperate species (65) found over the whole of Europe to eastern Siberia.
 

Irish Status: Currently very much a southern species both in Britain (Luff, 1998) and in Ireland. Johnson & Halbert (1902) were of the opinion that it was common throughout Ireland, but we think this was mistaken and based on limited experience of a relatively small number of suitable localities. There is evidence that it has decreased in recent decades in the midlands and north of England, but it was seemingly always rare in Northern Ireland with definite historical records only for Johnson's former parish of Armagh, and for Acton Glebe, Armagh, where he also lived for a time. There is only a single modern record for this area which relates to the shores of Lough Neagh near Antrim. Much less rare in midland and southern counties.
 

Ecology: This is a moderately thermophilic species which in central Europe is common on arable land. In Ireland it is mostly reported from open, bare ground on limestone rocks or similar warm substrata. There appear to be no published records for agricultural land here.