Mayfly Nymphs

Like most old patterns, the origins of this fly are a little foggy. Thought to originate on Pine Creek in PA. Old timers refer to it simple as a "...

This pattern has great action and attraction.  Use for the nymph and emerger, as the poxyback imitates the shine the wingcase takes on right befor...

Here’s your new, most versatile trout fly. The matte black tungsten bead gives this fly its punch. Put RIO’s Gum Dropper behind your favorite big d...

An excellent mayfly pattern, especially in waters overfished by the pheasant tail. Natural styled body is created by using pheasant tail and some ...

One of the world's most popular prospecting flies. Buggy, flashy, suggestive of a plethora of nymphs. The more it is fished the buggier it gets. ...

One of the world's most popular prospecting flies, presented here a beadhead for the sink and wiggle. Buggy, flashy, suggestive of a plethora of ...

  Still the #1 nymph in the world and with good reason, add the bead get it down, fish on!  It's just that simple. Buggy, flashy, suggestive of ...

All the amazing benefits of the Beadhead Hare's Ear with the added movement and enticing properties of rubber legs. Still the #1 nymph in the wor...

This mayfly is a staple of a trout's diet.Particularly prevalent in the mid-west and east. Sink it a bit or float it in the film. A great hatch; ...

This mayfly is a staple of a trout's diet. Particularly prevalent in the mid-west and east. This pattern also works as a great all-purpose mayfly ...

This mayfly is a staple of a trout's diet. Particularly prevalent in the mid-west and east. A classically structured nymph, can be used as a ...

An absolute must have in many Michigan streams, the Hex is the largest mayfly and inhabits many river systems. Great for trout, steelies, and any ...

A realistic representation of the nymph stage of a popular mayfly commonly known as the Hexagina (Hex). The ostrich ribbing moves much like the rea...

You'll appreciate the strike-inducing power of this versatile nymph pattern. General purpose nymph works well for mayflies, midges and other trout...

Still the #1 nymph in the world and with good reason. Buggy, flashy, suggestive of a plethora of nymphs. The more it is fished the buggier it gets...

A classic nymph, peacock thorax, slender pheasant tail body. The wire rib presents a nice segmented look, in addition to adding flash and durabili...

Like all the Pheasant Tail patterns, this one has a spot in every trout fisher's fly box. Hot spots make more sense that one might think at first...

This big mayfly nymph works well to imitate those late-hatching Mahogany nymphs, as well as brown and grey drakes, march browns and even skwalas. ...

Tied skinny on a curved nymph hook. Flash, excellent for skinny water, temperamentally challenged fish. Many nymphs develop a shiny back before ...

We dream of fishing those big, thick PMD hatches. This pattern will ensure that you catch those big trout even before they start eating dry flies. ...

An extremely buggy prince nymph pattern. This pattern is going to be a fish catching machine. Olive body with a bit a flash mixed in the dubbing...

Often over looked in the nymph form, light colored mayfly nymphs sometimes are the only nymph a finicky trout will hit. A nice silohuette for a n...

Wet flies are great emerging mayfly patterns, as well as a great searching pattern.  This classic color will work for all pale colored mayflies. W...

Tied specifically to closer imitate the E. Dorthea species. A very precise imitation for finicky fish. Sulphurs, PMDs, Light Cahills are major ha...

Part of being an exceptional fly creator means designing flies that are meant for you and your fly box only. That's precisely how RIO's signature t...

This pattern represents the March Brown nymph. In many places the emergence of this nymph represents the beginning of the spring fly fishing. This...

A beautiful all-purpose soft hackle beadhead. Imitates a March Brown along with many other mayflies.   Fish it in lakes, rivers and even works we...

Excellent for spring high water everywhere. In many places the emergence of this nymph represents the beginning of the spring fly fishing. This pa...

Your all-time favorite pattern with a bead that imitates the gas bubble nymphs ride to the top. This one will quickly be one of your must-haves. ...

BWO's hatch virtually year around. They are a major workhorse in trout fly fishing. The black bead puts different movement and adds to the emergin...

This is a customer requested pattern from back East! A gawdy little green drake emerger/nymph that swings and drifts with a vengance.  An all arou...

The addition of rubber legs to this all-time classic, make it an attractor pattern as well. Excellent for fast moving well oxygenated water. Now w...

Tied specifically to closer imitate the sulphur. The bright thorax imitates the sulphur, pmd and adds color contrast, that gets the attention of y...