Odonata: Coenagrionidae
Ischnura aurora
Male Aurora Bluetail Damselfly.
This is a beautiful little damselfly. It is tiny, about two centimetres long, and was difficult to get a good view of amongst the thick grass in an area of marsh.
It was only spotted in the first place by noticing the smallest of movements, like a single hair waving two metres away, but luckily with a tiny light-blue flag on the end.