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.

Stream photos

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Female Sweltsa borealis (Boreal Sallfly) Stonefly Adult Female Sweltsa borealis (Boreal Sallfly) Stonefly Adult

Lateral view of a Female Sweltsa borealis (Chloroperlidae) (Boreal Sallfly) Stonefly Adult from Harris Creek in Washington

I was not fishing, but happened to be at an unrelated social event on a hill above this tiny creek (which I never even saw) when this stonefly flew by me. I assume it came from there. Some key characteristics are tricky to follow, but process of elimination ultimately led me to Sweltsa borealis. It is reassuringly similar to this specimen posted by Bob Newell years ago. It is also so strikingly similar to this nymph from the same river system that I'm comfortable identifying that nymph from this adult. I was especially pleased with the closeup photo of four mites parasitizing this one.

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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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Report at a Glance

General Region	Pennsylvania
Specific Location	Central PA
Dates Fished	April 7, 2019
Time of Day	morning
Fish Caught	Browns and a Bow
Conditions & Hatches	Grannoms, Olives

Details and Discussion

Martinlf

Moderator
Palmyra PA

Posts: 3047

Martinlf on Apr 8, 2019April 8th, 2019, 3:40 pm EDT

After dealing with picky olive eaters for about a month we finally have grannoms. It's great to have bigger bugs and fish eager to go after them. Caught some fish that I could not interest in olives a week or so ago. From here on, the hatches just get better. Tight lines all!

"He spread them a yard and a half. 'And every one that got away is this big.'"

--Fred Chappell

Partsman

bancroft michigan

Posts: 321

Partsman on Apr 9, 2019April 9th, 2019, 12:37 am EDT

I went up to Grayling Sunday for a nymph fishing class at Gates lodge, there some bugs starting to come on the river as we worked on technique. I stopped at the Rifle rive on the way home and there was also some bug activity going on. Water temp was 42 degrees, but it finally has turned to spring around here! Im looking forward to better things.
Mike.

Summer_doug
Detroit, MI

Posts: 46

Summer_doug on Apr 9, 2019April 9th, 2019, 12:15 pm EDT

I donâ€™t mean to thread jack, but how was the Rifle looking Mike? Iâ€™m thinking about heading up on the Thursday before Good Friday and fishing Friday morning.

After finally getting out on some water, Iâ€™m itching to get out again. I was extremely rusty to the point of embarrassment for the first 3 hours or so!

Bring on Spring!

From Michigan