Umpqua Rag Hex Mercer #8

The Umpqua Fly Rag Hex Mercer is a highly realistic Hexagenia pattern created by signature tyer Mike Mercer, tailored for anglers targeting big, selective trout during evening and night hatches. Built to imitate large mayflies on slow rivers and stillwaters, this fly offers a convincing profile and footprint that triggers confident surface takes.

Its carefully chosen materials and proportions help the fly sit correctly in the surface film, giving a natural drift even in tricky seams and slow currents. The size 8 hook matches the larger Hexagenia mayflies commonly found on European and North American waters, making it a strong choice whenever big mayflies are on the menu.

Use it as a single dry fly on a long, fine leader when trout are cruising the surface, or pair it with a smaller emerger when the hatch is just starting. For anglers who enjoy hunting large fish in low light conditions, the Umpqua Fly Rag Hex Mercer is a reliable pattern to keep in the dry fly box.

• Fly type: Dry fly / mayfly imitation
• Pattern: Hexagenia imitation by Mike Mercer
• Brand: Umpqua
• Hook size: 8
• Target species: Trout and other surface-feeding gamefish
• Recommended use: Evening and night hatches on rivers and stillwaters
• Presentation: Fished dead-drift in the surface film