The mahogany dun imitates the adult Isonychia bicolor mayfly. Brown drakes are a burrowing type of mayfly, but when they hatch, trout key in to this large trout fly. This mayfly hatches twice during the year with intermittent hatches in between. Trout absolutely lose their inhibitions at the sight of this mayfly. Good luck!!!
Received my order today and the extended body Brown Drakes are really gorgeous! I was pleasantly surprised. Well proportioned, nice moose mane tails, nice hair wing post. I'd buy again.