MFC Flies Smethurst’s Hemorrhoidal Mouse
Available in multiple sizes including 6 and 4 for Bow River brown trout at dusk, and size 2 for larger species. Combines deer hair and foam for a highly buoyant body, trailed by a pearl core braid tail that lasts longer than leather tails and reflects light effectively.
- Designed by Frank Smethurst
- Hot butt provides an extra visual cue
- Effective for trout, bass, pike, steelhead, and other species that feed on mice
- Sold individually
| Size | Best Use |
|---|---|
| 6 | Bow River brown trout at dusk |
| 4 | Bow River brown trout at dusk |
| 2 | Larger species such as steelhead or pike |
This item is only shipped within Canada.
FAQ
What makes the hot butt on this fly special?
The hot butt adds an extra visual cue that helps attract fish, especially in low-light conditions like dusk.
Is this fly suitable for all types of fishing?
Yes, it is designed for species that eat mice, including trout, bass, pike, and steelhead.
Can I use this fly in different water conditions?
The buoyant body and pearl core tail perform well in various conditions, especially in clear or slightly murky waters where visibility matters.

Paul Paige –
Used the size 4 for dusk fishing on Bow River. The fly floats well and the hot butt stands out in the water. Caught several brown trout. Very effective in low light.
Alan Clark –
Fished with size 2 on a steelhead run. The tail held up well and the light reflection helped attract fish. A solid choice for larger species.
Rachel Ball –
The deer hair and foam combination gives a natural float. The pearl tail lasts longer than expected and doesn’t fray easily. Great for evening trips.