Baetis Mayfly

 Baetis Mayfly hatch matching patterns.

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Baetis Nymph Baetis Hackle Stacker Baetis Extended Body 
Baetis Soft Hackle Baetis CDC Dun Baetis Hair Wing Dun
Baetis Surface Emerger Baetis Dun, Traditional  Baetis Twilight Parachute
Baetis Floating Nymph Baetis Thorax Dun CDC Angel Wing Spinner
Baetis Sparkle Dun Baetis Loop Wing Paradun Poly Wing Spinner

Baetis Mayfly from the book: Hatch Guide For Western Streams by Jim Schollmeyer - CLICK HERE ! Baetis mayflies are an extremely widespread genus.  Several species  are multi-brooded and may have two or more generations  per season.  There are at least five sub-species that hatch from Oregon streams and lakes.  Hatches can occur nearly any time of year.  This makes them common trout food and therefore very important to fly anglers.  Baetis are found in both the western and 
eastern United States.  The Latin name is the popular name used by the angling public. They are also commonly called  blue-winged olives.  However Baetis can also have tan or gray bellies.  Trout can be very selective and prefer one shade over another.  Most Baetis look gray on the water and can be quite deceptive.  It pays to catch a hatched insect and examine it closely under magnification.  Baetis are small, #16–20, but they hatch in big numbers.  The best hatches occur on over-cast, rainy days.  Hatches can start in late morning and extend into early after noon.  
Baetis nymphs are swimmers.  They inhabit many water types in streams, but prefer weedy riffles and runs.  Use a "kick screen" in the morning.  If you find Baetis nymphs with wing pads that are very dark, chances are there will be a hatch during that day.  Nymphs will start getting restless in the morning.  This is a good time to pound the bottom with Baetis Nymph patterns.  Nymphs start drifting down the river and swimming to the surface in the late morning.  Some nymphs might make several attempts to reach the surface before they actually make it.  These insects are very small and don't provide much food value unless they can be taken easily in a large quantity. The best places to fish are where riffles with small graveled weedy runs enter slow pools or slow back-eddies.  The nymphs leave the bottom of the riffle and drive along the bottom for a distance.  Then they attempt to swim to the surface while the water velocity slows down. When the nymphs reach the surface of the water, their wing pads break through the meniscus.  They can hang there for several minutes as floating nymphs.  As the skin splits down the back of the head and between the wing pads the dun starts to emerge through this tear. At this point the insect can neither swim nor fly.  It is completely helpless and a perfect target for trout. The hatching duns can collect in quieter flows in very large numbers.   The trout know where these conditions regularly occur and also collect in large numbers.  Feeding is usually slow and quiet.  Look for snouts and fin tips.  Target individual fish with pin-point casting. 

Baetis Nymph
Baetis nymphs are swimmers.  They prefer weedy riffles and runs.  Use a "kick screen" in the morning.  If you find Baetis nymphs with wing pads that are very dark, chances are there will be a hatch during that day.  Nymphs will start getting restless in the morning.  This is a good time to pound the bottom with Baetis Nymph patterns.  Tied for the winter hatch. Mark Bachmann pattern.
Item Description Size Price To Top
06558-16 Baetis Nymph 16 3 for $5.25
06558-18 Baetis Nymph 18 3 for $5.25

Baetis Soft Hackle Baetis Soft Hackle
Some winter Baetis start to emerge below the surface of the water and others get hung up in the shuck and are still-born.  Still others get swept into fast water and are pulled back under by the currents and drown.  Fishing a soft hackle replica in the surface film on a slack line can fool some of the pickiest feeders.
This pattern is tied for the winter hatch. It is a Mark Bachmann pattern tied by FLYH2O.
Item Description Size Price To Top
06557-18 Baetis Soft Hackle 18 3 for $5.25


Baetis Surface Emerger
Winter Baetis Mayflies can be very dark colored.  Many are jet black.  As the nymph swims to the surface The adult insect is already separating itself from the nypmphal shuck.  Bright green bands form at each abdominal segment.  As the skin splits down the back of the head and between the wing pads of the nymph, the dun starts to emerge through this tear.   At this point the insect can neither swim nor fly.  It is completely helpless and a perfect target. Mark Bachmann pattern.
Item Description Size Price To Top
06556-16 Baetis Surface  Emerger 16 3 for $5.25

06556-18 Baetis Surface Emerger 18 3 for $5.25


Baetis Floating Nymph
When Baetis nymphs reach the surface of the water, their wing pads break through the meniscus.  They can hang there for several minutes as floating nymphs.  If this happens in slower water, trout can target them at this stage and ignore emergers and duns.  A must have fly for summer hatches.
Item Description Size Price To Top
1018-18 Baetis Floating Nymph 18 3 for $5.25
1018-20 Baetis Floating Nymph 20 3 for $5.25

Baetis Sparkle Dun
Baetis duns slide from the inside of the nymphal skin out onto the surface of the water.  Their wings assume an upright position while the shuck still hangs from the rear of the abdomen.  Some are exhausted and are trapped with this shuck attached.  They become easy prey for trout.  this is a proven fly for Baetis hatches, winter and summer.
Item Description Size Price To Top
1016-16 Baetis Sparkle Dun 16 3 for $5.25
1016-18 Baetis Sparkle Dun 18 3 for $5.25
1016-20 Baetis Sparkle Dun 20 3 for $5.25

Baetis Hackle Stacker Sparkle Dun
This dainty pattern was designed by bob Quigley and is especially useful on spring creeks where trout are particularly selective.
Item Description Size Price To Top
Q1021-16 Baetis H.S. Sparkle Dun 16 3 for $5.25
Q1021-18 Baetis H.S. Sparkle Dun 18 3 for $5.25
Q1021-20 Baetis H.S. Sparkle Dun 20 3 for $5.25

Baetis CDC Dun
This lightweight low floating dun will bring strikes fished wet or dry.  Fish this fly dry during the hatch or wet in the surface film a drowned dun after the hatch is over.
Item Description Size Price To Top
1012-18 Baetis CDC Dun 18 3 for $5.25
1012-20 Baetis CDC Dun 20 3 for $5.25

Baetis Dun, Traditional
This old pattern is still very effective under a wide variety of conditions.  I can be fished as a high floater with all of the hackle intact or the bottom of the hackle can be snipped off with your leader clipper to set the fly closer to the water.  I the extreme, the hackle and wings can be trimmed down to form an emerger pattern. 
Item Description Size Price To Top
1019-14 Baetis Dun, Traditional 14 3 for $5.25
1019-16 Baetis Dun, Traditional 16 3 for $5.25
1019-18 Baetis Dun, Traditional 18 3 for $5.25

Baetis Thorax Dun
This pattern positions the wing coming out of the thorax which gives the fly a life-like silhouette and balance.  The tail is tied in as a "V" and the hackle has been trimmed on the bottom for even more realism. This is a very popular style dry fly for both anglers and trout.
Item Description Size Price To Top
1011-16 Baetis Thorax Dun 16 3 for $5.25
1011-18 Baetis Thorax Dun 18 3 for $5.25
1011-20 Baetis Thorax Dun 20 3 for $5.25

Baetis Loop Wing Paradun
This quill body, loop wing parachute is an especially good match for Baetis with lighter colored bellies.
Item Description Size Price To Top
Q200-16 Baetis Loop Wing Paradun 16 3 for $5.25
Q200-18 Baetis Loop Wing Paradun 18 3 for $5.25
Q200-20 Baetis Loop Wing Paradun 20 3 for $5.25

Baetis Extended Body Compara Dun
This low floating fly has a highly visible fluorescent green wing spot.  This is a very good fly for visually impaired anglers or tough seeing conditions.
Item Description Size Price To Top
1013-18 Baetis Extended Body Compara Dun 18 3 for $5.25
1013-20 Baetis Extended Body Compara Dun 20 3 for $5.25

Baetis Hair Wing Dun
Many of the Baetis that hatch in the late fall and winter from our local streams have gray banded bellies.  This quill body hair-wing-dun is a very good match.  It is an extremely hard fly to see on the water, so we have added a fluorescent orange wing spot. If the trout are extremely selective, you may trim the wing spot.
Item Description Size Price To Top
1021-18 Baetis Hair Wing Dun 18 3 for $5.25

Baetis Twilight Parachute
This is another hi-vis dry fly. Remember that Baetis like to hatch on dark overcast days.  These are conditions which make it tough for the angler to distinguish his fly from the real ones.  Being able to see your fly can be a critical factor for success.
Item Description Size Price To Top
1022-16 Baetis Twilight Parachute 16 3 for $5.25
1022-18 Baetis Twilight Parachute 18 3 for $5.25

Baetis CDC Angel Wing Spinner
Baetis emergence and spinner falls may happen during the same period of the day.  One "hatch" can mask the other.  Duns are easy to see.  Low floating or submerged spinners are very difficult to see.  Some times when you see hatching duns and rising trout, but can't get strikes, the fish may be feeding on spinners.  This fly may be fished dry or wet.  It matches olive color spinners.
Item Description Size Price To Top
1014-18 Baetis CDC Angel Wing Spinner 18 3 for $5.25
1014-20 Baetis CDC Angel Wing Spinner 20 3 for $5.25

Baetis Poly Wing Spinner
Some Baetis spinners, especially the ones that hatch during the late fall and winter, are gray toned.  This fly can be fished dry or wet and can extend your productive fishing time.
Item Description Size Price To Top
1024-18 Baetis Poly Wing Spinner 18 3 for $5.25
1024-20 Baetis Poly Wing Spinner 20 3 for $5.25

The key to success is "understanding".  You can never know enough.
Understanding the organisms that trout feed on is one of the keys to catching trout.
The Hatch Guide For Western Streams by Jim Schollmeyer 
is great reference material for the trout fisher.
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