The Blue Damsel is a longtime development. My mate Graham and I started experimenting with the colours and sizes, etc, many moons ago, after we had been consistently frustrated by these wildly leaping browns taking these bright blue and green version Damsel flies in mid-air.
Having played around in the kitchen getting various dyes to produce unusual shades of blue and green, we finally had the first sample of Blue Damsels to try out.
It was so successful the trout kept the first one to study at close quarters on the first cast of the first fly we had tied. It is also the only fly I have take a fish on in mid-air, but that’s another story.
The main thing is the tie represents the insect in flight not at rest like most of the commercially-tied varieties.