Insects and other foods the trout may be eating:
1.   Blue-winged Olives - mostly Little BWO - Isolated hatches
2.   Mahogany Duns
3.   Midges - hatching in isolated locations
4.   Little Yellow Stoneflies - hatching (Little Summer Stones)
5.   Slate Drakes - hatching
6.   Cream Cahills - hatching in Isolated locations
7.   Beetles
8.   Grasshoppers
9.   Ants
10. Inch Worms
11. Crane Flies
12. Helligramite
13. Streamers - matching sculpin, baitfish and small crawfish

Mahogany Dun Spinner

If you have fished the Smokies in late August, September and into the first week or
two of October, you have probably seen the tiny mahogany duns and thought they
were midges or little Blue-winged Olives. Many anglers may not have noticed the
spinners at all. They are easy to see if the lighting is just right but impossible to see
otherwise. The most noticeable thing about them, and the thing that tells you they
are mayflies, is the up and down dance they perform. The males, called Jenny
Spinners, fly up and down about a foot or two. The Jenny Spinner has a almost
clear abdomen. They look different from the females which turn a basic rusty color.
The males may or may not fall in the water and are not near as important as the
female Mahogany Duns.

You want to make you presentation of the "Perfect Fly" Mahogany Dun Spinner into
the calm water areas -the ends of pools, eddies, pockets behind rocks, etc. The fish
will just sip the spinners and you may not notice the takes at all. It is about
impossible to see your fly. You just have to watch for a small swirl or your line to
move. The trout are remaining in one area looking for the spinners, so if you don't
get a take in one place, try another.

It is not easy to keep from spooking the trout. Stay hidden, move very slowly and
make rather long cast compared to the normal cast you would make in the Smokies.
That isn't always easy to do on the small streams. A bush or tree limb can get your
fly easier than a trout can.

The image on the right shows the abdomen on a Jenny
Spinner. Notice the wings are so clear you can barely see
them. This is the male Mahogany Dun spinner. The female
spinner has a rusty brown abdomen like our fly below.

"Perfect Fly" Mahogany Dun Spinner

Copyright 2009 James Marsh