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Mayfly Family Baetidae (Blue-Winged Olives)

Pictures Below

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

  • The behavior and habitat of Baetidae.
  • 10 underwater pictures of Baetidae.
  • 1 streamside picture of Baetidae.

Pictures of 80 Mayfly Specimens in the Family Baetidae:

Specimen Page:1...345...9
Baetidae (Blue-Winged Olives) Mayfly NymphBaetidae (Blue-Winged Olives) Mayfly Nymph View 3 PicturesThis specimen has indistinct gill veinlets (Veinlet: Short insect wing veins connecting the major longitudinal veins to the wing margin.), a rounded seventh gill, and no bands on the tails.
Collected February 7, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006
Baetidae (Blue-Winged Olives) Mayfly NymphBaetidae (Blue-Winged Olives) Mayfly Nymph View 3 PicturesThis Baetid nymph has no tracheation on its gills, no distinct bands on its tails, and a rounded, oval 7th gill. Abdominal segments 5, 9, and 10 are pale.
Collected February 5, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006
Baetidae (Blue-Winged Olives) Mayfly NymphBaetidae (Blue-Winged Olives) Mayfly Nymph View 3 PicturesThis is the only Baetis nymph I found in my January 31st (read: not sane) sampling in 2004. I looked at this one under my small microscope and wrote down some useful identification features which aren't really visible in the pictures from my camera. This nymph had conspicuous gill veinlets (Veinlet: Short insect wing veins connecting the major longitudinal veins to the wing margin.), a pointed, slender 7th gill, tail bands on the middle and tip, and abdominal segments 5, 9, and 10 are definitely pale, with segment 8 in-between, debatably pale.
Collected January 31, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006
Baetidae (Blue-Winged Olives) Mayfly NymphBaetidae (Blue-Winged Olives) Mayfly Nymph View 2 Pictures
Collected March 1, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006
Callibaetis (Speckled Duns) Mayfly DunCallibaetis (Speckled Duns) Mayfly Dun View 2 Pictures
Collected May 30, 2005 from the S. Fk. Milk River in Montana
Added to Troutnut.com by Bnewell on June 28, 2011
Specimen Page:1...345...9
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