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Mayfly Genus Baetis (Blue-Winged Olives)

Taxonomic Navigation -?-
Species in BaetisNumber of SpecimensNumber of Pictures
Baetis bicaudatusBWO00
Baetis brunneicolorBlue-Winged Rusty Dun00
Baetis flavistrigaBWO00
Baetis intercalarisSmall Eastern Blue-Winged Olive00
Baetis magnusIron Blue Quill00
Baetis tricaudatusBlue-Winged Olive00

17 species aren't included.
Common Names

Pictures Below

This is page 4 of specimens of Baetis. Visit the main Baetis page for:

  • The behavior and habitat of Baetis.

Pictures of 32 Mayfly Specimens in the Genus Baetis:

Specimen Page:1234
Baetis flavistriga (BWO) Mayfly NymphBaetis flavistriga (BWO) Mayfly Nymph View 5 PicturesThis specimen keys to the Baetis flavistriga complex, which could be either flavistriga or Baetis phoebus.
Collected August 3, 2020 from the East Fork Big Lost River in Idaho
Added to by Troutnut on August 19, 2020
Female Baetis tricaudatus (Blue-Winged Olive) Mayfly DunFemale Baetis tricaudatus (Blue-Winged Olive) Mayfly Dun View 6 PicturesThis one emerged from a nymph of this kind in my studio but got a bit waterlogged before I could pull it out to photograph.
Collected September 12, 2020 from the Yakima River in Washington
Added to by Troutnut on September 19, 2020
Female Baetis tricaudatus (Blue-Winged Olive) Mayfly SpinnerFemale Baetis tricaudatus (Blue-Winged Olive) Mayfly Spinner View 5 PicturesThis female spinner was deceased when photographed, so the posture is unnatural, but it was a substantial hatch and clearly worth imitating (with wet flies to imitate the sunken ovipositing females) so I went ahead with the photos.

It was collected in association with a male spinner.
Collected September 4, 2020 from Silver Creek in Idaho
Added to by Troutnut on September 18, 2020
Baetis (Blue-Winged Olives) Mayfly AdultBaetis (Blue-Winged Olives) Mayfly Adult View 1 Pictures
Collected March 1, 2005 from the Jocko River in Montana
Added to by Bnewell on June 28, 2011
Specimen Page:1234
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