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Landscape & scenery photos from the Madison River

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From the Madison River in Montana.
StateMontana
LocationMadison River
Date TakenJul 1, 2019
Date AddedJul 17, 2019
AuthorTroutnut
CameraNIKON 1 AW1
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From the Madison River in Montana.
StateMontana
LocationMadison River
Date TakenJul 1, 2019
Date AddedJul 17, 2019
AuthorTroutnut
CameraNIKON 1 AW1
View Full SizeView Full Size and Comment (5.6X larger)
AddEmail
From the Madison River in Montana.
StateMontana
LocationMadison River
Date TakenJul 1, 2019
Date AddedJul 17, 2019
AuthorTroutnut
CameraNIKON 1 AW1
View Full SizeView Full Size and Comment (6.7X larger)
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Typical scene along MT-287 driving down the Madison River valley... flat pastures backed by dramatic mountains and weather in all directions. From the Madison River in Montana.
Typical scene along MT-287 driving down the Madison River valley... flat pastures backed by dramatic mountains and weather in all directions.
StateMontana
LocationMadison River
Date TakenJul 5, 2019
Date AddedJul 18, 2019
AuthorTroutnut
CameraCanon EOS 7D Mark II
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From the Madison River in Montana.
StateMontana
LocationMadison River
Date TakenAug 17, 2018
Date AddedJun 12, 2019
AuthorTroutnut
CameraCanon EOS 7D Mark II
Page:123

On-stream insect photos from the Madison River

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We arrived at the parking lot on the Madison to find clouds of caddisflies swarming around everything, including every tree and vehicle in the parking lot. In this picture: Insect Order Trichoptera (Caddisflies). From the Madison River in Montana.
We arrived at the parking lot on the Madison to find clouds of caddisflies swarming around everything, including every tree and vehicle in the parking lot.

In this picture: Insect Order Trichoptera (Caddisflies).
StateMontana
LocationMadison River
Date TakenJul 1, 2019
Date AddedJul 17, 2019
AuthorTroutnut
CameraNIKON 1 AW1
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Looking back across the Madison at a cloud of caddisflies swarming over the bank about 50 yards away, backlit by the sun. In this picture: Insect Order Trichoptera (Caddisflies). From the Madison River in Montana.
Looking back across the Madison at a cloud of caddisflies swarming over the bank about 50 yards away, backlit by the sun.

In this picture: Insect Order Trichoptera (Caddisflies).
StateMontana
LocationMadison River
Date TakenJul 1, 2019
Date AddedJul 17, 2019
AuthorTroutnut
CameraNIKON 1 AW1

Closeup insects from the Madison River

Page:123
Female Pteronarcys californica (Giant Salmonfly) Stonefly AdultFemale Pteronarcys californica (Giant Salmonfly) Stonefly Adult View 13 Pictures
Collected June 30, 2019 from the Madison River in Montana
Added to Troutnut.com by Troutnut on July 17, 2019
Female Sweltsa (Sallflies) Stonefly AdultFemale Sweltsa (Sallflies) Stonefly Adult View 8 PicturesThese stoneflies--abundant during midday--seemed at first to be flying around with plain yellow bodies, but on closer inspection turn out to have striking, fiery red abdomens.

Collected June 30, 2019 from the Madison River in Montana
Added to Troutnut.com by Troutnut on July 17, 2019
Female Sweltsa (Sallflies) Stonefly AdultFemale Sweltsa (Sallflies) Stonefly Adult View 5 Pictures
Collected June 30, 2019 from the Madison River in Montana
Added to Troutnut.com by Troutnut on July 17, 2019
Male Rhithrogena Mayfly SpinnerMale Rhithrogena Mayfly Spinner View 11 PicturesThis male was collected at the same time as this female and is likely the same species.
Collected July 1, 2019 from the Madison River in Montana
Added to Troutnut.com by Troutnut on July 18, 2019
Male Ephemerella aurivillii Mayfly DunMale Ephemerella aurivillii Mayfly Dun View 7 PicturesThis dun was collected in proximity to this spinner, and to this female that looks like the same species.

Among western species, it most closely resembles Ephemerella aurivillii, of which I reared a specimen from a positively-identified nymph and photographed the male dun previously in Alaska. In the photos, this dun does not seem to have the same evidence of the nymph's dorsal (Dorsal: Top.) stripe, but that's due to the lighting. A faint stripe is apparent under the microscope, as it is in the female linked above.

They do appear to be a bit short for aurivillii, with the male at 8 mm and the female at 9 mm, but the spinners could be a bit longer.

Among the other Ephemerella mayflies documented in Montana, Ephemerella alleni and Ephemerella mucronata are the only two others that seem to not be ruled out.
Collected July 1, 2019 from the Madison River in Montana
Added to Troutnut.com by Troutnut on July 18, 2019
Page:123

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Top 10 Fly Hatches
BaetisBaetidaeEphemerellidaeHexagenia limbataChironomidaeHeptageniidaeEphemerella subvariaIsonychiaEphemerellaHydropsychidae
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Miscellaneous Sites
Dalton Highway (Haul Road) Corridor Map