- Maruto D04 HWW #10-16
- Thread: 8/0 Black
- Body: Mad Rabbit Dubbing-Natural
- Ribbing: Wire
- Tail and Body: olive goose biot
- Hackle: Partridge – one turn!
- Neck: Spiky Dubb in natural color
The fly is a variant of Classic Universal Nymph originated by Steve Schweitzer long time ago and was published on Globalflyfisher. Tied in this version is more close to olive stone flies and mayflies.