Tip: gold
Body: Black ostrich
Legs: Small black
Wing: Starling’s wing
Black Gnat from The Art of Angling by William Blacker. The one above is tied in hand on a vintage blind-eye hook, while the three below all are tied for fishing on Ahrex FW580 #10.
A versatile pattern that have been in use all these years, but with a body-material that you don’t see that often today: ostrich herl.