Mayfly Nymphs

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...

A fantastic summertime PMD nymph. Imitates a caddis pretty dang well too Simple, heavy, flashy.  Often, the simplest fly is the most productive ...

Extremely effective and popular mayfly nymph imitation. Particularly effective in the late season baetis hatches. Tied in the sizes that seem to...

The Little Olive is a modern twist on the iconic pheasant tail. Tiny silicone legs are used for the wingcase, legs, and tail for added longevity w...

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...

In many ways, this fly was born out of my youth and learning to tie with Andre Puyans. Andy was the creator of the AP nymph, which was a great fly ...

With all due respect to John Barr and his brilliant creation of the Copper John (which may still be the best-selling nymph of all time) there were ...

This fly came about as a necessity for creating a pattern that maintains profile, attractive properties in all water conditions and mayfly hatch si...

Please note that Perdigon hooks are 2x wide and are often mistake for a size or two larger than they are. The Perdigon Nymph was created by Spanis...

Take a beadhead Pheasant Tail and give it a heavier bead, and you have a faster sink rate, and slightly different action to foll even the wariest ...

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...

Lets face it fish like shiny stuff, it is often what attracts them in the first place. Pheasant Tail UV contains UV dubbing in the thorax that he...

One of the top five trout nymphs ever tied on a tippet. A near perfect imitation of the blue wing olive nymph, also works great for a general mayf...

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 have's....

Proudly designed by a Big Y Customer and Hood River local. "This fly features a simple body design that helps it sink quickly and a natural CDC col...

Pink Ladies aren't near as common as a bwo or pmd, and are often mistaken for them. However, when they are hatching you can bet that a mayfly imit...

How do you improve on the Prince??  Add a more realistic profile. Contains attributes of many types of patterns including attractors and emergers ...

Wet fly hackles give this fly incredible underwater movement. Pair that with the krystal and the color purple and you get one of the hottest new p...

When a raindrop hits the water, it quickly disappears. RIO's Raindrop does the same. This perdigon style fly is heavy and slender to get down into ...

Very realistic nymph pattern that sinks well. Can mimic little stones and mayfly nymphs.

Absolute must in your fishing box, regardless of species. Imitates many under water food sources, has attraction, movement, a real classic. Create...

Designed by one of the renowned stillwater fly fishing angler Denny Rickard. Calibaetis are frequently a major hatch on lakes and rivers as well. ...

RIO's Rock Grinder is designed to sink very fast and be a nice mix of buggy-ness and attraction. This euro nymph has a hot tag of floss and a CDC c...

Sinks quickly and catches fish. Tested on the Yuba and Feather Rivers in California Color contrast and flash, this will scream 'pick me' wh...

A classic nymph, with a pheasant tail thorax and slender pheasant tail body. Useful for virtually all mayfly nymphs, including the Baetis nymph. ...

"The Silver Bullet Baetis is a sleek, fast sinking pattern perfect for hanging below a bushy dry, or on a nymph rig. This simple fly is durable, ...

A chironomid pupa pattern, the Snow Cone is meant to replicate emergering chironomids. Extremely popular in the high lakes of Oregon and Colora...

This "softie" is tied on a scud hook and paired with a tungsten bead.  It  makes a wonderful dropper pattern - behind either a larger nymph or a hi...

One of many highly effective patterns that originate in the Czech/Euro field. A slim body, synthetic fibers, and a tungsten bead help this patter...

Tied specifically to closer imitate the sulphur. Sulphurs, PMDs, Light Cahills are major hatches on many, many rivers.

Sulphurs and Pale Morning Duns are fairly similar in look and no surprise that the staple nymph for both hatches are the Pheasant Tail. The Sulph...

What a great looking nymph!   Imitates "clinger" style mayfly nymphs, but also works well as a small stonefly Gets down, looks good, catches fish.

Designed by Randall Kaufmann to imitate the callibaetis nymph, also works for dragonfly and damselfly nymph. A very productive lake pattern and ...

Originating in Colorado this pattern imitates stonefly nymphs in larger sizes and mayfly nymphs in smaller sizes. Using peacock herl, this patt...

Is it a stone? Mayfly? Attractor? Yes! The Ugly Duckling is an excellent general attractor pattern that can be effective in many rivers throughou...