Western Green Drake
During late June and early July rivers around Prince George, especially the nutrient rich rivers, have pretty good Western Green Drake (Drunella grandis) hatches. Although these mayflies are fairly large some anglers on occasion will confuse it with the Flav hatch (Drunella flavilinea) that happens in August. Flavs look like Western Green Drakes but are quite a bit smaller.
To imitate Drunella grandis I developed the following pattern to imitate the newly hatched dun.
Originator: Danie Erasmus
Hook: #10 Mustad 94840
Thread: 6/0 olive
Tail: Moose hair
Body: Dark brown or olive dubbing with yellow embroidery thread
Wing: Gray poly yarn
Hackle: One medium brown and one yellow grizzly hackle