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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 Setvena wahkeena (Perlodidae) (Wahkeena Springfly) Stonefly Nymph from Mystery Creek #199 in Washington
As far as I can tell, this species has only previously been reported from one site in Oregon along the Columbia gorge. However, the key characteristics are fairly unmistakable in all except for one minor detail:
— 4 small yellow spots on frons visible in photos
— Narrow occipital spinule row curves forward (but doesn’t quite meet on stem of ecdysial suture, as it's supposed to in this species)
— Short spinules on anterior margin of front legs
— Short rposterior row of blunt spinules on abdominal tergae, rather than elongated spinules dorsally
I caught several of these mature nymphs in the fishless, tiny headwaters of a creek high in the Wenatchee Mountains.
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.

Strmanglr
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Posts: 156
Strmanglr on Mar 4, 2013March 4th, 2013, 7:46 am EST
Anyone ever fly fish there? I'm thinking about going in late August or September. Thought I might get super lucky and land a coaster.

I'm just starting to read more about the coaster brook trout and found out how few there are in the U.S. and thought I might try my luck while I still can. I've read they spawn in the Salmon Trout R and on Drummond Isle.
Jmd123
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Oscoda, MI

Posts: 2474
Jmd123 on Mar 4, 2013March 4th, 2013, 8:27 am EST
I have fished Drummond Island in the past by conventional methods, tried a little fly fishing there in May of 1990 and didn't catch anything on flies (I was trying for perch). Haven't heard anything about the coaster brookies there, but during my trip to Isle Royale last year I was told that they are getting pretty rare over there. They even said that the interior brookie populations in the island were in decline. Not sure why...

There is a fishery at Drummond in June and July for cisco that come up to feed on hatching Hexagenia. I talked with someone local around here last year who said he knew about it, but that when that fishery gets going the boats get so crowded together that fly fishing might not be practical - or safe!

If you do go, keep me posted - the place has a lot of childhood memories for me from the fishing trips of my youth and I am itching to get back there one of these days myself. Check out the MDNR trout stream maps, there are a couple or designated trout streams on the island. Maybe that's where those coasters spawn???

Jonathon
No matter how big the one you just caught is, there's always a bigger one out there somewhere...
Strmanglr
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Posts: 156
Strmanglr on Mar 4, 2013March 4th, 2013, 1:09 pm EST
Are there any rivers to wade and catch trout or clear moderate pace stuff w smallies?
Jmd123
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Oscoda, MI

Posts: 2474
Jmd123 on Mar 5, 2013March 5th, 2013, 4:57 pm EST
Not many streams on the island other than the Potagannising River which feeds out into the bay of the same name. I do know pike, suckers, and bullheads run up this stream pretty heavy in the spring, have caught 'em all in there including my first ever fly-rod pike back in 1990. The trout streams look like small creeks. Not sure what exactly you'd find in the Potagannising Flooding in the interior of the island - bass or pike? Most of the fishing there takes place in the Bay and in various coves around the island. South side is reputed to be good for smallmouth. Next time I go I'm taking my kayak and I'm busting into that flooding and checking out some of those smallie coves!

Jonathon
No matter how big the one you just caught is, there's always a bigger one out there somewhere...

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