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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.

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.
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Xavier_Carp has attached these 4 pictures to aid in identification. The message is below.
Xavier_Carp
Posts: 13
Xavier_Carp on Aug 27, 2007August 27th, 2007, 11:55 am EDT
Can you give me a clue about this dragon fly nymphs??
Taxon
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Site Editor
Plano, TX

Posts: 1311
Taxon on Aug 28, 2007August 28th, 2007, 11:30 am EDT
Xavier_Carp-

If I were to hazard a guess, it would be that the 1st and 3rd photos might be of family Aeshnidae, and that the 2nd and 4th photos might be of family Libellulidae. Both families are most commonly collected along the edges of lakes and ponds. However, identifying dragonfly nymphs is much more difficult if photographed out of the water, and even more so, if they have not reached full maturity.

Hopefully, someone here will be more experienced identifying dragonflies, and can give you more than my admittedly lame guesses.
Best regards,
Roger Rohrbeck
www.FlyfishingEntomology.com

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