Randy's Baetis
Start by tying in wood duck /mallard tails and dub body.

Tie in some legs by using same material as tail. Cut to length about even with the hook point.

Tie in the wingcase. Use black colored Tyvek material. This is about 2mm wide.
Cut to length. Again, about even with hook point.

Dub over the tie in point to make head.

Finish off with whip finish.

Tie a dozen of these and wait for a cloudy day to take to nearest stream and try them out.