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Landscape & scenery photos from the East Fork Big Lost River

Page:123
 From the East Fork Big Lost River in Idaho.
StateIdaho
Date TakenAug 3, 2020
Date AddedAug 18, 2020
AuthorTroutnut
CameraCanon EOS 7D Mark II
 From the East Fork Big Lost River in Idaho.
StateIdaho
Date TakenAug 3, 2020
Date AddedAug 18, 2020
AuthorTroutnut
CameraNIKON 1 AW1
 From the East Fork Big Lost River in Idaho.
StateIdaho
Date TakenAug 3, 2020
Date AddedAug 18, 2020
AuthorTroutnut
CameraNIKON 1 AW1
 From the East Fork Big Lost River in Idaho.
StateIdaho
Date TakenAug 3, 2020
Date AddedAug 18, 2020
AuthorTroutnut
CameraNIKON 1 AW1
Kind of pretty for a stocker. From the East Fork Big Lost River in Idaho.
Kind of pretty for a stocker.
StateIdaho
Date TakenAug 3, 2020
Date AddedAug 18, 2020
AuthorTroutnut
CameraNIKON 1 AW1
Page:123

Closeup insects from the East Fork Big Lost River

Page:12
Female Ephemerella tibialis (Little Western Dark Hendrickson) Mayfly DunFemale Ephemerella tibialis (Little Western Dark Hendrickson) Mayfly Dun View 6 PicturesI'm fairly confident calling this dun Ephemerella tibialis because it emerged from one of several similar nymphs in my bucket, which I was able to ID with quite a bit of certainty. However, it looks very different from the other duns I currently have listed, which makes me rethink their IDs.
Collected August 3, 2020 from the East Fork Big Lost River in Idaho
Added to Troutnut.com by Troutnut on August 18, 2020
Dolophilodes (Medium Evening Sedges) Caddisfly LarvaDolophilodes (Medium Evening Sedges) Caddisfly Larva View 9 PicturesI think this larva best fits Dolophilodes, in which the anterior (Anterior: Toward the front of an organism's body. The phrase "anterior to" means "in front of.") margin of the frontoclypeus is supposed to be "slightly asymmetrical." I can't confidently make out the asymmetry, but the other genera are supposed to have either greater asymmetry or a symmetrical, but convex, shape, whereas this one is clearly concave.

Based on distribution records, the species should be either aequalis, dorcus, or pallidipes, but I can't find any source to distinguish between them.
Collected August 3, 2020 from the East Fork Big Lost River in Idaho
Added to Troutnut.com by Troutnut on August 19, 2020
Hesperoperla pacifica (Golden Stone) Stonefly NymphHesperoperla pacifica (Golden Stone) Stonefly Nymph View 9 PicturesID notes from the microscope: The occiput (Occiput: The back of the head.) has a sinuate, irregularly spaced spinule row.
Collected August 3, 2020 from the East Fork Big Lost River in Idaho
Added to Troutnut.com by Troutnut on August 19, 2020
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 Troutnut.com by Troutnut on August 19, 2020
Female Ephemerella excrucians (Pale Morning Dun) Mayfly DunFemale Ephemerella excrucians (Pale Morning Dun) Mayfly Dun View 12 PicturesThis "specimen" is actually two different duns, one missing the middle front and back left legs, the other missing the terminal filament i.e. middle tail. I added them together by accident, but since they're the same species, stage, and gender, I might as well leave them together.
Collected August 2, 2020 from the Big Lost River in Idaho
Added to Troutnut.com by Troutnut on August 18, 2020
Page:12

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