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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.

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.
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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Roguerat
Roguerat's profile picture
Posts: 456
Roguerat on Jun 13, 2018June 13th, 2018, 11:59 pm EDT
Just for grins,

its that time of the season again, I found a bunch of 'urban hexes' on the glass door of my office this morning...came in early (500 am) so as to leave early and the flies were there.
The only mud-bottom/banked water within miles would be Plaster Creek which is at best a cesspool...I guess its still Hex water, though.

Tight lines, and things are getting HOT here in W MI...temps in the low 90's for the next 4-5 days and stream flows are getting correspondingly lower.

Roguerat

'Less is more...'

Ludwig Mies Vande Rohe

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