This beauty flew straight past my nose, then pitched in some long grass that was up at shoulder height, on top of a bank.
It was the first spoonwing, (Nemoptera bipennis), I'd ever seen ~ indeed, it's the only one I've seen to date!
Note its two elongated streamers on either side of its body! Such a remarkable little creature!

"Spoonwings or Nemopteridae are a family of neuropteran insects. They are also called Thread-winged Antlions. Their flight is delicate
and they have a circling flight to avoid walls when they are trapped indoors. The long streamer is conspicuous when the insects are flying
and these are the elongated and spatulate hind wings. They are found in the Ethiopian, Palearctic, Australasian and Neotropical regions." [Wikipedia]