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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 Glossosoma (Glossosomatidae) (Little Brown Short-horned Sedge) Caddisfly Larva from the Yakima River in Washington
I caught this tiny larva without a case, but it seems to key pretty clearly to to Glossosomatidae. From there, the lack of sclerites on the mesonotum points to either Glossosoma or Anagapetus. Although it's difficult to see in a 2D image from the microscope, it's pretty clear in the live 3D view that the pronotum is only excised about 1/3 of its length to accommodate the forecoxa, not 2/3, which points to Glossosoma at Couplet 5 of the Key to Genera of Glossosomatidae Larvae.
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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Martinlf has attached this picture to this report. The message is below.

Report at a Glance

General RegionPennsylvania
Specific LocationCentral PA
Dates FishedApril 9, 2019
Time of Daymorning
Fish CaughtBrowns
Conditions & HatchesBreezy, grannoms hatching, fish eating

Details and Discussion

Martinlf
Martinlf's profile picture
Moderator
Palmyra PA

Posts: 3047
Martinlf on Apr 9, 2019April 9th, 2019, 11:09 am EDT
Another good day on the water.
"He spread them a yard and a half. 'And every one that got away is this big.'"

--Fred Chappell
Wbranch
Wbranch's profile picture
York & Starlight PA

Posts: 2635
Wbranch on Apr 12, 2019April 12th, 2019, 2:58 pm EDT
A lovely wild brown trout from a very popular central PA trout stream.
Catskill fly fisher for fifty-five years.
Adirman
Adirman's profile picture
Monticello, NY

Posts: 479
Adirman on Apr 13, 2019April 13th, 2019, 4:08 am EDT
Sweet fish, thanks for sharing 😊
Partsman
Partsman's profile picture
bancroft michigan

Posts: 321
Partsman on Apr 18, 2019April 18th, 2019, 11:32 am EDT
Wow, Martin! beautiful fish, im officially jealous! Hopefully things will start popping soon. But for now I will enjoy your pictures and descriptions of the flies and waters you are fishing. Please keep them coming, thanks.
Mike.
Martinlf
Martinlf's profile picture
Moderator
Palmyra PA

Posts: 3047
Martinlf on Apr 30, 2019April 30th, 2019, 4:22 pm EDT
Thanks, Guys. Tight lines and good fishing to you.
"He spread them a yard and a half. 'And every one that got away is this big.'"

--Fred Chappell

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