Adams

Created in Michigan, 1922. Most famous dry. Imitates mayflies broadly.

Printed on the Ace of hearts

The Adams is the fly you tie on when you can see rises but cannot see what is causing them. Its grizzly-and-brown mixed hackle reads as mottled rather than any one color, and the muted gray body sits in the middle of the range covered by most mayfly duns. That vagueness is the whole point. A trout looking up through moving water is reading size, silhouette and posture far more than it is reading color, and the Adams gets all three approximately right for an enormous number of insects.

It has survived a century of fly design because it fails gracefully. A pattern tied to imitate one specific insect is superb during that hatch and nearly useless outside it. The Adams is rarely the single best fly on the water and almost never the wrong one. If you carry a box to an unfamiliar river, this is the pattern that keeps you fishing while you work out what is actually going on.

Size matters more than anything else with this fly. The same dressing in #12 suggests a big spring mayfly; in #20 it reads as a midge cluster or a tiny olive. Most anglers carry it far too large. When fish are refusing, drop two sizes before you change patterns.

What does an Adams imitate?

Adult mayflies and midges, generically.

How do you fish an Adams?

Dead drift on a fine tippet, upstream or across, with enough slack that the fly moves at exactly the speed of the current. Any drag at all and a good fish will refuse it. Cast to the rise ring rather than to the fish, and give it a foot or two of lead.

When should you fish an Adams?

Any time you see mayfly duns on the surface, and any time you see rises you cannot identify. Strongest from the first spring hatches through autumn, and effective through winter in smaller sizes on tailwaters.

What are the quick tips for fishing it?

• Carry it in #14, #16 and #18 before you carry any other dry fly.
• When fish refuse a standard Adams, switch to the parachute version — the lower profile often solves it.
• Clip the bottom of the hackle flat to sit the fly deeper in the film during a spinner fall.

How is an Adams tied?

• Hook: standard dry fly, #12-#20
• Thread: gray 8/0
• Tail: mixed grizzly and brown hackle fibres
• Body: muskrat or gray dubbing
• Wing: grizzly hackle tips, upright and divided
• Hackle: grizzly and brown, mixed

Dressings vary by tier and region. Treat this as the common recipe, not the only one.