Could anyone identify this to species level?
No interactions present.
As far as I know, you have to see the elyra to determine to species level - unfortunately, they swim on their backs, so this picture only shows the underside, so it will have to stay as Notonecta sp.
Record your ladybird sightings!
yes its a waterbootman
Lat/Lng: 54.86455570255, -6.2924194335938
OS grid ref: NW246606