This is a popular pattern New Zealand developed by Bill Hamill in the 1960's,representing small fish and insects.
Success can be found when fishing close to the banks, and is a good fly for fishing amongst weed beds.
Used mainly for still water fishing, it is also effective in slower river waters. Retrieve with a smooth pull followed by short pauses.
Fished on an intermediate line produces the best results.
The winter version has an orange and yellow marabou tail to attract aggressive fish during spawning season.