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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.

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.

Dorsal view of a Rhyacophila fuscula (Rhyacophilidae) (Green Sedge) Caddisfly Larva from Mystery Creek #62 in New York
Flybyknight
Milton, DE

Posts: 82
Flybyknight on Nov 23, 2007November 23rd, 2007, 10:38 pm EST
Interesting to learn that Jason collected R. fuscula April 1st. My hatch chart for the East Branch Delaware needs to be corrected, as I had R. fuscula hatching much later. Schweibert mentions this insect on p.83.

Dick
Lightly on the dimpling eddy fling;
the hypocritic fly's unruffled wing.
Thomas Scott
Taxon
Taxon's profile picture
Site Editor
Plano, TX

Posts: 1311
Taxon on Nov 24, 2007November 24th, 2007, 3:59 am EST
Dick-

I may be missing something here, but it appears the Rhyacophila fuscula which Jason collected and photographed were (was?) in larval stage, and therefore wouldn't be emerging until later, so perhaps your chart does not require revision.
Best regards,
Roger Rohrbeck
www.FlyfishingEntomology.com
Troutnut
Troutnut's profile picture
Administrator
Bellevue, WA

Posts: 2758
Troutnut on Nov 26, 2007November 26th, 2007, 12:04 pm EST
Yeah, I was kind of puzzled there too. It's a larva.
Jason Neuswanger, Ph.D.
Troutnut and salmonid ecologist

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