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Artistic view of a Male Pteronarcys californica (Pteronarcyidae) (Giant Salmonfly) Stonefly Adult from the Gallatin River in Montana
Salmonflies
Pteronarcys californica

The giant Salmonflies of the Western mountains are legendary for their proclivity to elicit consistent dry-fly action and ferocious strikes.

Dorsal view of a Pycnopsyche guttifera (Limnephilidae) (Great Autumn Brown Sedge) Caddisfly Larva from the Yakima River in Washington
This specimen appears to be of the same species as this one collected in the same spot two months earlier. The identification of both is tentative. This one suffered some physical damage before being photographed, too, so the colors aren't totally natural. I was mostly photographing it to test out some new camera setting idea, which worked really well for a couple of closeups.
27" brown trout, my largest ever. It was the sub-dominant fish in its pool. After this, I hooked the bigger one, but I couldn't land it.
Troutnut is a project started in 2003 by salmonid ecologist Jason "Troutnut" Neuswanger to help anglers and fly tyers unabashedly embrace the entomological side of the sport. Learn more about Troutnut or support the project for an enhanced experience here.

MarkP
Cary, Il.

Posts: 4
MarkP on Aug 25, 2008August 25th, 2008, 4:20 am EDT
Approximately #18
Black body
3 tails with stripes

???
I love fly fishing and fly tying more than a fat kid likes cake...
Troutnut
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Administrator
Bellevue, WA

Posts: 2758
Troutnut on Aug 25, 2008August 25th, 2008, 5:58 am EDT
Yup, sounds like a mayfly.

(If you want more specifics, we need more details!)
Jason Neuswanger, Ph.D.
Troutnut and salmonid ecologist
Taxon
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Site Editor
Plano, TX

Posts: 1311
Taxon on Aug 25, 2008August 25th, 2008, 8:50 am EDT
Mark-

To expand on Jason's comment:

Was it a nymph or a winged mayfly?
If winged, was it a dun (dull wings) or a spinner (hyaline wings)?
If winged, were the wings plain, or were the marked or mottled?
What was the date of observation?
What was the state or province of observation?
What was the predominant color of the tails?
What was the color of the tail joinings that resulted in your describing them as striped?
Was the middle tail either shorter or longer than the outer tails?

Without a photo, these are the kind of details you would need to provide in order to even get a reasonable guess as to ID.
Best regards,
Roger Rohrbeck
www.FlyfishingEntomology.com
MarkP
Cary, Il.

Posts: 4
MarkP on Aug 26, 2008August 26th, 2008, 6:59 am EDT
Sorry guys, I've got to slow down when posting:

Mayfly spinner
Black or very dark brown body/approx. size 18
3 tails - no stripes
Legs have brown banding/stripes.
Small hind wing behind main wing(s).

Location: Western Massachusetts.

A friend of mine saw these bugs but couldn't I.D. them.

Mark
I love fly fishing and fly tying more than a fat kid likes cake...
Taxon
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Site Editor
Plano, TX

Posts: 1311
Taxon on Aug 26, 2008August 26th, 2008, 8:57 am EDT
Mark-

Assuming it was observed in August, I believe the greatest likelihood would be Attenella attenuata. For a detailed description of this mayfly, you can go to Mayfly Species Detail Query, key attenuata into the Taxon box, and click the Submit Query button.
Best regards,
Roger Rohrbeck
www.FlyfishingEntomology.com

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