Literally every summer, me and the family visit my mother-in-law's place outside Härnösand which is located 500 km / 300 miles north of our home in Stockholm, Sweden.
She has a grand garden which is a goldmine for me and my macro lens and in that garden is a pond which attracts multiple species of dragonflies.
One of those sepecies is the yellow-winged darter (Sympetrum flaveolum) - but I only saw it that one summer back in 2018. Never before and never after. And there were loads of them, fighting for territory, courting and mating - and yet I haven't seen them in six summers since then.
This is a male as evidenced by the bright red colour and you can see the translucent yellow parts of the wings that give the species its name.
Part 1 here: www.flickr.com/photos/tinyturtle/32502228818/
Part 2 here: www.flickr.com/photos/tinyturtle/46173630975/
and a much closer shot here: www.flickr.com/photos/tinyturtle/49860184986/