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Closeup insects from the Henry's Fork of the Snake River

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Tipulidae (Crane Flies) Crane Fly AdultTipulidae (Crane Flies) True Fly Adult View 5 Pictures
Collected August 11, 2018 from the Henry's Fork of the Snake River in Idaho
Added to Troutnut.com by Troutnut on June 12, 2019
Female Ephemerella excrucians (Pale Morning Dun) Mayfly SpinnerFemale Ephemerella excrucians (Pale Morning Dun) Mayfly Spinner View 7 Pictures
Collected August 1, 2020 from the Red Rock Creek in Idaho
Added to Troutnut.com by Troutnut on August 18, 2020
Male Siphlonurus occidentalis (Gray Drake) Mayfly SpinnerMale Siphlonurus occidentalis (Gray Drake) Mayfly Spinner View 6 Pictures
Collected July 31, 2020 from the Henry's Fork of the Snake River in Idaho
Added to Troutnut.com by Troutnut on August 17, 2020
Leptoceridae Caddisfly AdultLeptoceridae Caddisfly Adult View 17 PicturesThis specimen keyed easily to Leptoceridae, but I hit a bit of a dead end in the genus key, because I can't seem to find the cross-veins in the wings that are supposed to help narrow it down. I took pictures of all the relevant features under the microscope; maybe somebody with more experience with the family can help.
Collected July 31, 2020 from the Henry's Fork of the Snake River in Idaho
Added to Troutnut.com by Troutnut on August 17, 2020
Male Acerpenna pygmaea (Tiny Blue-Winged Olive) Mayfly SpinnerMale Acerpenna pygmaea (Tiny Blue-Winged Olive) Mayfly Spinner View 8 Pictures
Collected August 1, 2020 from the Henry's Fork of the Snake River in Idaho
Added to Troutnut.com by Troutnut on August 18, 2020
Male Ephemerella excrucians (Pale Morning Dun) Mayfly SpinnerMale Ephemerella excrucians (Pale Morning Dun) Mayfly Spinner View 5 Pictures
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
Male Ephemerella excrucians (Pale Morning Dun) Mayfly SpinnerMale Ephemerella excrucians (Pale Morning Dun) Mayfly Spinner View 6 Pictures
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
Libellulidae Dragonfly AdultLibellulidae Dragonfly Adult View 3 PicturesThis specimen of Libella saturata, the flame skimmer dragonfly, is the only invertebrate in this site's collection that I caught by hook and line. It swooped down and attacked my dry fly on the Firehole River, where it lived as a nymph in the hot water near the geothermal springs and geyser runoff.
Collected August 11, 2018 from the Firehole River in Idaho
Added to Troutnut.com by Troutnut on June 12, 2019
Female Hydropsyche (Spotted Sedges) Caddisfly AdultFemale Hydropsyche (Spotted Sedges) Caddisfly Adult View 7 PicturesThis species was really common along the Henry's Fork at the end of July. I photographed it along with a male that appears to be the same species, and another male of the same genus but a seemingly different, less common (on this day) species.
Collected July 31, 2020 from the Henry's Fork of the Snake River in Idaho
Added to Troutnut.com by Troutnut on August 17, 2020
Female Siphlonurus occidentalis (Gray Drake) Mayfly SpinnerFemale Siphlonurus occidentalis (Gray Drake) Mayfly Spinner View 9 Pictures
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
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