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Mayfly Genus Drunella (Blue-Winged Olives)

Pictures Below

This is page 6 of specimens of Drunella. Visit the main Drunella page for:

  • The behavior and habitat of Drunella.

Pictures of 51 Mayfly Specimens in the Genus Drunella:

Specimen Page:1...3456
Drunella doddsii (Western Green Drake) Mayfly NymphDrunella doddsii (Western Green Drake) Mayfly Nymph View 1 PicturesThis is a photo of the ventral (Ventral: Toward or on the bottom.) surface of this nymph which acts to help hold the nymph on rock surfaces.
Collected July 5, 2007 from Many streams in Montana
Added to Troutnut.com by Bnewell on June 26, 2011
Drunella coloradensis (Small Western Green Drake) Mayfly NymphDrunella coloradensis (Small Western Green Drake) Mayfly Nymph View 4 PicturesThis one nicely illustrates the variation in coloration within an single Ephemerellid species in a single stream, when compared to its darker, more uniform counterpart.
Collected July 25, 2019 from Mystery Creek #249 in Washington
Added to Troutnut.com by Troutnut on July 26, 2019
Female Drunella flavilinea (Flav) Mayfly DunFemale Drunella flavilinea (Flav) Mayfly Dun View 6 PicturesI can't be certain of the ID of this female dun, but I'm calling it Drunella flavilinea for three reasons: 1) the known abundance of "flavs" on the Henry's Fork, 2) clear differences in coloration from my confirmed specimens of Drunella coloradensis, which is the main lookalike, and 3) the habitat (a sizable river in a wide mountain valley, rather than a small, high-altitude stream) suggests it's not coloradensis.
Collected July 31, 2020 from the Henry's Fork of the Snake River in Idaho
Added to Troutnut.com by Troutnut on August 16, 2020
Drunella doddsii (Western Green Drake) Mayfly NymphDrunella doddsii (Western Green Drake) Mayfly Nymph View 1 PicturesMature nymph.
Collected July 5, 2007 from Many streams in Montana
Added to Troutnut.com by Bnewell on June 26, 2011
Specimen Page:1...3456
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