Mayfly Species Baetis tricaudatus (Blue-Winged Olive)
Taxonomic Navigation -?-
Kingdom Animalia (Animals)
» Phylum Arthropoda (Arthropods)
» Class Insecta (Insects)
» Order Ephemeroptera (Mayflies)
» Family Baetidae (Blue-Winged Olives)
» Genus Baetis (Blue-Winged Olives)
» Species tricaudatus (Blue-Winged Olive)
Common Names
| Match | Common Name |
 | Blue-Winged Olive |
 | Rusty Spinner |
| Little Blue-Winged Olive |
| Iron Blue Quill |
| BWO |
 | Little Iron Blue Quill |
| Light Blue Dun |
| Light Rusty Spinner |
Fly Imitations by Orvis
| Stage | Fly Pattern |
| Dun | Blue Winged Olive |
Fortunately, brown trout think like Shakespeare: A rose by any other name would smell as sweet. The rose that was vagans has lost none of its charm.
Where & When
Regions: East, Midwest, West
Time Of Year (?): Three broods: Late March to April, late June, and September
Altitude: Any elevation, including high-altitude Western creeks
Every Eastern or Midwestern angler is likely to encounter the Baetis tricaudatus hatch each season, as are anglers on fertile Western streams. Good streams produce three broods with distinct peaks, but each may last long enough to overlap with the next, meaning that this mayfly can be found at almost any time in the season.Time Of Year (?): Three broods: Late March to April, late June, and September
Altitude: Any elevation, including high-altitude Western creeks
Hatching Behavior
Time Of Day (?): Warmest part of the afternoon (at least for the early brood)Habitat: Slow water
Water Temperature: 40°F and up
Nymph Biology
Current Speed: AnySubstrate: Gravel, vegetation
Baetis tricaudatus Fly Fishing Tips
Caucci and Nastasi note in Hatches II that the original Western version of Baetis tricaudatus is of a noticeably different color from the Eastern population that was formerly Baetis vagans, so one color of imitation may not work in both places.2 Mayfly Specimens in the Species Baetis tricaudatus:
Baetis tricaudatus (Blue-Winged Olive) Mayfly Dun
View 7 PicturesThis female was associated with a male of the same species.
View 7 PicturesThis female was associated with a male of the same species.Region: Northeast
Collected Apr 3, 2007
Added Apr 4, 2007
Baetis tricaudatus (Blue-Winged Olive) Mayfly Dun
View 8 PicturesThis male was associated with a female of the same species.
View 8 PicturesThis male was associated with a female of the same species.Region: Northeast
Collected Apr 3, 2007
Added Apr 4, 2007
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