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Lateral view of a Female Hexagenia limbata (Ephemeridae) (Hex) Mayfly Dun from the Namekagon River in Wisconsin
Hex Mayflies
Hexagenia limbata

The famous nocturnal Hex hatch of the Midwest (and a few other lucky locations) stirs to the surface mythically large brown trout that only touch streamers for the rest of the year.

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.
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State College, PA

Posts: 103
Smallstream on Aug 16, 2007August 16th, 2007, 3:29 am EDT

Do you guys think this brookie hit the 10" mark?

pic of the stream

me peering over a small footbridge, for some reason the brookies didnt scoot for cover, strange.
Spring Mills, PA

Posts: 97
IEatimago on Aug 16, 2007August 16th, 2007, 4:15 am EDT
nice one small stream!
Spring Mills, PA

Posts: 97
IEatimago on Aug 16, 2007August 16th, 2007, 4:15 am EDT
Jmd123's profile picture
Oscoda, MI

Posts: 2474
Jmd123 on Aug 16, 2007August 16th, 2007, 1:09 pm EDT
There's only one thing I can call streams with fish like that: Holy Waters. And I'm not even religious! Small brookie streams are magical places with beautiful fish, good for cleansing the soul.

No matter how big the one you just caught is, there's always a bigger one out there somewhere...
Wbranch's profile picture
York & Starlight PA

Posts: 2635
Wbranch on Aug 16, 2007August 16th, 2007, 1:27 pm EDT
Maybe 10" if you use the "Fishermen's ruler".
Catskill fly fisher for fifty-five years.

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