Irresistible

a Joe Messinger Sr. fly from the recipe in The Founding Flies by Mike Valla

Hook: #10 - 16 fine wire
Thread: black
Tail: deer body hair
Body: spun and clipped deer body hair: white on bottom, darker on top
Wings: deer body hair, upright and divided
Hackle: claret or dun (or other color of choice) wrapped mostly behind wings

Head cement recipe:
Goop
Xylene (epoxy thinnner)

Instructions:
Fill a quart jar half full with Xylene
Squeeze a tube of Goop into the Xylene
Shake until the Goop is dissolved; add Xylene to desired consistency

Apply with a pin or needle dipped in the liquid

https://youtu.be/AJbvJUixaCs