Body: Mole or water-rat’s fur, mixed with yellow mohair
Tail: Mouse’s whiskers
Hackle: Dun
Wing: Tomtit’s tail feather
Blue Blow Fly 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.
One with a couple of subsititutes: mouse whiskers is not something I’ve got in my stash, so I chose some of the thinnest whiskers from a Hare. The wing was also substituted with Grouse