Another home run by John Barr. The Barr’s emerger can be tied to imitate many types of Mayfly emergers. This classic variation is best used if there is a BWO hatch with the majority of the bugs in the transition stages.
This is a great option if you are fishing a dry dropper, a “”drop shot”” style rig with this as your lead fly with a weighted fly on point or flip flopped with a weight fly on top and this trailing on point.
Barr’s BWO Emerger Recipe:
Hook – Tiemco TMC 2487
Thread – Veevus 14/0 Gray (B05)
Abdomen – Superfine dubbing Olive
Thorax – Superfine dubbing grey
Wing buds – Mallard Flank
Tail – Whiting high and dry cape Brown
All fly tying tools are available here, and “orders over $25 ship FREE” in the Lower 48 US.