This is a midge larva pattern, and it’s easy to tie…very easy.
Here’s my recipe…
Hook: TMC 200R size 16
Head: Glass bead – I used black, translucent purple, red, and clear…just to be safe, I guess
Rib: Silver wire
Body: Tan thread – Uni-Thread 8/0 in this case
Fuzzy-buggy part of the head: Black nymph dubbing
Put bead on hook, thread in behind the eye, attach wire just behind the eye and wrap thread over it to the back bend of the hook to avoid the “big butt” look…especially since the body is merely thread and it’s hard to put spanks on that bugger to trim its hips. Once thread is wrapped back to the bend and it’s a good starting place for the wire rib, wrap the thread back up to behind the dirty-nymphing bead, then wrap the ribbing back up to the thread, and trim the wire. Dub the thread, wrap around just behind the bead as needed, and half-hitch. I trimmed the dubbing back a bit, but merely so it didn’t look absolutely ginormous in the close-up picture, it’s probably not necessary, but from the chironomid pictures I found through googling, it doesn’t appear they’re really “leggy” in larva form.