I found this beetle running around on my footpath about 6-7mm ,black and bronze in colour.
No interactions present.
It may be the ground beetle 'Bembidion tetracolum'. It used to be known as 'Bembidion ustulatum'.
I have checked it out at http://www.habitas.org.uk/groundbeetles/species.asp?item=7240
and it is common in Ireland.Picture seems to be a good match too.
Lat/Lng: 52.6, -7.9
OS grid ref: SF0616