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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 Neoleptophlebia (Leptophlebiidae) Mayfly Nymph from the Yakima River in Washington
Some characteristics from the microscope images for the tentative species id: The postero-lateral projections are found only on segment 9, not segment 8. Based on the key in Jacobus et al. (2014), it appears to key to Neoleptophlebia adoptiva or Neoleptophlebia heteronea, same as this specimen with pretty different abdominal markings. However, distinguishing between those calls for comparing the lengths of the second and third segment of the labial palp, and this one (like the other one) only seems to have two segments. So I'm stuck on them both. It's likely that the fact that they're immature nymphs stymies identification in some important way.
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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Wbranch
Wbranch's profile picture
York & Starlight PA

Posts: 2635
Wbranch on Mar 22, 2009March 22nd, 2009, 2:24 pm EDT
I wanted to share this photo of a really large Erie tributary steelhead that my friend caught last week. This male was caught last Saturday on pink sucker spawn and 7# tippet. It was just one of about thirty he caught on Saturday. I'd say he had a stellar day.

Catskill fly fisher for fifty-five years.
DOS
Buffalo, NY

Posts: 64
DOS on Mar 22, 2009March 22nd, 2009, 5:06 pm EDT
wow that is a monster, good god! True trophy!! Look how his hand sinks into the belly, that adipose fin thats the size of his thumb and how think the tail is... signs of a real monster! Any Erie fish greater than 10lbs is quite exceptional !!
Andrew Nisbet
JAD
JAD's profile picture
Alexandria Pa

Posts: 362
JAD on Mar 23, 2009March 23rd, 2009, 2:23 pm EDT
That"s a real good looking hen. The females are usually a bit heavier while the males are long and skinny. Here's one from today in the thirty plus.

John

They fasten red (crimson red) wool around a hook, and fix onto the wool two feathers which grow under a cock’s wattles, and which in colour are like wax.
Radcliffe's Fishing from the Earliest Times,
Wbranch
Wbranch's profile picture
York & Starlight PA

Posts: 2635
Wbranch on Mar 24, 2009March 24th, 2009, 6:27 am EDT
I also thought it was a hen but in another picture you can see a stream of milt coming out of the anal vent.
Catskill fly fisher for fifty-five years.
Wbranch
Wbranch's profile picture
York & Starlight PA

Posts: 2635
Wbranch on Mar 24, 2009March 24th, 2009, 6:52 am EDT
See new picture - maybe it's a hermaphrodite steelie! Surely has a hen's head shape though.

Catskill fly fisher for fifty-five years.
JAD
JAD's profile picture
Alexandria Pa

Posts: 362
JAD on Mar 24, 2009March 24th, 2009, 10:29 am EDT
Yes I do, I thought it was a bra strap. Your friends fish must be watching a lot of TV and nipping on Crown Royal.

I stand corrected.

John

They fasten red (crimson red) wool around a hook, and fix onto the wool two feathers which grow under a cock’s wattles, and which in colour are like wax.
Radcliffe's Fishing from the Earliest Times,
Troutnut
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Administrator
Bellevue, WA

Posts: 2758
Troutnut on Apr 1, 2009April 1st, 2009, 11:46 am EDT
Beautiful fish! I'm jealous. Liquid water is just beginning to show up around here on some of the warmer days.
Jason Neuswanger, Ph.D.
Troutnut and salmonid ecologist
Wbranch
Wbranch's profile picture
York & Starlight PA

Posts: 2635
Wbranch on Apr 1, 2009April 1st, 2009, 12:27 pm EDT
Yes, it's an amazing steelhead, especially for the Erie streams in PA.
Catskill fly fisher for fifty-five years.

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