Black Gnat

Black Gnat

The Black Gnat is a timeless dry fly pattern that has been fooling trout for well over a century. Its dark, compact profile makes it one of the most versatile small dry flies you can carry — effective as an imitation of midges, black gnats, flying ants, and small beetles depending on the conditions. When trout are sipping tiny dark insects in the film and refusing larger patterns, the Black Gnat's understated silhouette and natural presentation are often exactly what it takes to get a rise.

Pattern Details

• Style: Classic dry fly / multi-purpose small insect imitation
• Body: Dark dubbed body — imitates midges, gnats, ants, and small beetles
• Best water: Rivers, streams, spring creeks, and stillwaters — wherever trout are feeding on small dark insects in the film
• Target species: Trout
• Techniques: Dead-drifted in the surface film through feeding lanes, eddies, and slow pools; effective year-round wherever small dark insects are present
• Sizes available: 16, 18

A classic that earns its place in every dry fly box — the Black Gnat is a go-to pattern when trout are selective on small dark insects and subtlety is the key to getting a strike.