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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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Isidro
Posts: 24
Isidro on Mar 26, 2008March 26th, 2008, 2:39 am EDT
This one is very common into my city and could be the adult of the nymph showed in the last thread. It's a big one, about 20 mm. wingspan. Two cerci, very big eyes and very conspicuous dark venation. Could be Ecdyonurus cf. venosus?

This one is about to becomes a ctrab spider lunch.




Zaragoza, NE Spain.

Many thanks,

Isidro
Taxon
Taxon's profile picture
Site Editor
Plano, TX

Posts: 1311
Taxon on Mar 26, 2008March 26th, 2008, 6:15 am EDT
Isidro-

Yes, Ecdyonurus venosus, however I suspect the body length (not including tails) may be more like 14 mm.
Best regards,
Roger Rohrbeck
www.FlyfishingEntomology.com
Isidro
Posts: 24
Isidro on Mar 26, 2008March 26th, 2008, 6:54 pm EDT
Wow!!! Many thanks Taxon!! You have identified it at species level! I had doubts because there are more similar species in genus. Yes, the body length, as you said, I thinks is about 15 mm. (without cerci).

Then, I think that the nymph in the last post is from this species, due to any other Ecdyonurus is seen into my city and this one is very common.

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