Green Drake
The Green Drake hatch is legendary in many fly fishing regions. When it’s active, anglers should have these flies ready.
This pattern is known to cause confusion due to the wide variety of species and regional differences. On the West Coast, the Drunella Grandis and its minor subspecies are most common. On the East Coast, Ephemera guttulata dominates.
Appearance can vary significantly based on location, time of year, and specific hatch patterns. The Green Drake is also effective for slate-winged olive and flavs, which hatch later in the season.
| Species | Region | Hatch Time |
|---|---|---|
| Drunella Grandis | West Coast | Spring to early summer |
| Ephemera guttulata | East Coast | Spring to early summer |
| Slate-winged olive | Widespread | Late summer |
| Flavs | Widespread | Late summer to early fall |
FAQ
What species does the Green Drake imitate?
The Green Drake imitates species such as Drunella Grandis on the West Coast and Ephemera guttulata on the East Coast. It is also effective for slate-winged olive and flavs during later season hatches.
How does the appearance of the Green Drake vary?
Appearance varies by region, time of year, and specific hatch conditions. West Coast populations tend to be more robust with Drunella Grandis, while East Coast hatches feature Ephemera guttulata. Later season hatches include slate-winged olive and flavs, which have distinct coloration and wing patterns.
Is the Green Drake suitable for all fly fishing regions?
The Green Drake is most effective on the West and East Coasts, where the target species are common. Use with caution in regions where the species are not native or well-documented.

Joan Nash –
I’ve used the Green Drake during multiple spring hatches on the East Coast. It matched Ephemera guttulata perfectly and caught several trout on the first try. The pattern holds well in the water and is easy to tie.
Elizabeth Morgan –
Fished it on the West Coast in early summer. The Drunella Grandis hatch was strong and the Green Drake responded well. A bit more variation in color than expected, but still effective.
Mary Fisher –
Great for late season fishing. Used it with slate-winged olive and flavs. The later hatches were tough to catch, but this fly worked well in the shade and during cooler mornings.