From Brett Westwood and Stephen Moss’s Wonderland: A Year of Britain’s Wildlife Day by Day:
‘Common and widespread though it may be, this small, neat dragonfly is always worth a second look. The males are brick red and the females yellow, so I use the aide-memoire “rhubarb and custard” to remember this.’

Which dragonfly is being described? I’m sure many of you worked out it was the Common darter, which is flying now in my local parks and reserves, though in quite small numbers so far.