Disused quarries often flood after a while, and our local one is often good for damselflies and dragonflies. It was a bit windy today, and although I saw some Blue-tailed damsels, I couldn't get a picture.
The quarry has its own micro-climate, and is home to a few species that I don't find anywhere else on my patch.
This Mayfly is one of the Baetidae, probably from the Cloeon or Procloeon families, which prefer still water to running water:

Mouse-ear Hawkweed - Pilosella officinarum - is usually associated with limestone, which is where I normally see it, but the quarry's upper levels are covered with them:
Ox-eye daisy is fairly widespread, but it's always earlier where the sun heats up the rock: