Target fish: trout / grayling
Hook: 15 - 19
Mounting thread: olive
Tail: two gray natural hackles or syntetic fibers
Body: yellow hare´s dubbing
Rib: olive mounting thread
Wings: section of gray feather, duck flank or similar
Notes: Not always easy to spot on the surface when fished but extremely valueable, during baetis hatches but well fitting a wide sprectrum of other small mayflies. The Fall Baetis gives its best when the fish tend to take that invisible something just underneath the waterfilm.