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*We try to pack and ship online orders the same day or next as often as possible. If you would like to make an appointment to stop by the Fly-Cave located at 8157 W Morraine Dr. Littleton, CO 80128, please call or text the shop phone at 720-580-9558 or email us at The shop is open for walk-in shopping Mon-Fri from 8am - 4:30pm and by appointment during off hours and weekends*close



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Blue Winged Olive Mayfly Selection

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0.06 LBS
Calculated at checkout
Size chart

Product Description

The Blue Winged Olive Mayfly is one of the most prolific mayfly families in the United States and can be found on rivers and streams at every elevation and in almost every state.  This mayfly family will often have two generations per year, with large hatches occurring in both the spring and fall with a few early bloomers coming off in between.  

Our Blue Wing Olive selections have been crafted to allow the angler to take advantage of and fish every life stage of this important mayfly species (Nymph, Wet Emerger, Dry Emerger, Dun, Spinner, and Spinner Fall).  

The Small Selection will touch on the dominant life stages and includes 6 dry fly patterns and 6 wet fly patterns.

The Medium Selection will expand upon both the dry and wet life stages and includes 10 dry fly patterns and 14 wet fly patterns.

The Large Selection will flesh out this vital trout food, covering every life stage and includes 15 dry fly patterns and 21 wet fly patterns.

The X-Large Selection exhaustively covers the life cycle of the BWO Mayfly, ensuring that you will have the flies you need for both the spring and fall hatches, and includes 20 dry fly patterns and 28 wet fly patterns.

The fly patterns included in this selction are:

  • Juju Baetis - Black/Purple & Black/Grey
  • Beadhead Pheasant Tail Flashback
  • The Answer - Dark Olive & White
  • Barr's Emerger - BWO
  • Greg's Emerger - Olive
  • Sparkle Dun - BWO
  • Parachute BWO Emerger
  • BWO Thorax Dun
  • BWO CDC Comparadun
  • Parachute BWO
  • BWO CDC Spinner

The quantity of flies dedicated to each life stage is based on their importance to the fly fisher and feeding trout.

Fly box not included - selection will be packed in a recyclable container.

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Returns Policy

We pride ourselves in the production of quality flies and fishing gear, and want our customers to be 100% satisfied with every purchase they make from Ascent Fly Fishing. That's why we are happy to offer a 30 day return policy on all items that are unused, are in brand new condition, and come back with their original tags and packaging.  Items that are returned beyond 30 days will be eligible for store credit, which will be issued in the form of a gift certificate.  Items returned without their original packaging and tags, or items that have been used are not eligible for return.

This policy applies to all products we sell with the exception of terminal tackle (leaders, tippets, weights, floatants, indicators, etc.), digital downloads, classes, sale items and Biologist Crafted Fly Selections.

A 10% restocking fee will apply.


The Client will be responsible for paying the shipping costs to return the item. Shipping costs are nonrefundable.


Product Reviews

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  1. Big Fish Strikes

    Posted by High Plains Fisher on 4th Oct 2016

    Just as told for the afternoon/evening hatch, the bigger trout went crazy for the midges under the fishing trip in a long time!

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