Small blue insects on rocks in the upper intertidal zone.
No interactions present.
I saw something similar last year but unfortunately didn't get a definitive id.
The comments added might be useful.
I think these are the same species - here's a link to info about them on the MarLIN website:
It's amazing how they don't get wet!
I see that MarLIN page also describes their orange eggs.
Paula, I am wandering through Marines (as you do...)
I wonder if the tag Marine♠ is correct - I am open to discussion!
But sea http://www.ispotnature.org/node/364376 !
See also http://www.stevehopkin.co.uk/collembolamaps/Poduromorpha/068ANmar/
♠Salt water: Rocks in shallow seas, mud and shingle in shallow seas, rocks in deeper seas, mud and shingle in deeper seas, continental shelf slope, oceanic seas.
Lat/Lng: 54.1026, -0.1217
OS grid ref: TA229690