Blue Wing Olive - Thorax

Blue Wing Olive – Thorax

The Blue Wing Olive – Thorax is a classic Catskill-style modification of one of the most important mayfly patterns in fly fishing. Designed to imitate adult Blue Winged Olive mayflies, this proven dry fly offers a realistic profile and dependable flotation that make it a favorite among trout anglers across the country.

Blue Winged Olives are among the most consistent hatches found on rivers, streams, and tailwaters, often emerging during overcast days, cooler temperatures, and throughout much of the year. When trout begin feeding on the surface, a well-presented BWO pattern can be incredibly effective.

The Thorax style features an upright wing profile and a natural silhouette that sits attractively on the water, making it a reliable choice whenever Blue Winged Olives are present.

Key Features
• Classic Catskill-style thorax pattern
• Realistic Blue Wing Olive profile
• Highly effective during BWO hatches
• Excellent visibility and flotation
• Productive on rivers, streams, and tailwaters
• A proven dry fly for selective trout

Imitates
Adult Blue Wing Olive mayflies.

Available Sizes
#12 - #22

A true fly box essential, the Blue Wing Olive – Thorax continues to fool trout wherever Blue Winged Olive hatches occur.