Leaf miner in a dock leaf
No interactions present.
Yes, it could be and is likely but I don't think we cannot be certain from just the mine alone.
For my post of today I looked at every other one in iSpot - a useful exercise thanks.
Now see http://www.ispotnature.org/node/817566 and agree!
Lat/Lng: 51.228166666667, -2.81
OS grid ref: ST435479