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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 Holocentropus (Polycentropodidae) Caddisfly Larva from the Yakima River in Washington
This one seems to tentatively key to Holocentropus, although I can't make out the anal spines in Couplet 7 of the Key to Genera of Polycentropodidae Larvae nor the dark bands in Couplet 4 of the Key to Genera of Polycentropodidae Larvae, making me wonder if I went wrong somewhere in keying it out. I don't see where that could have happened, though. It might also be that it's a very immature larva and doesn't possess all the identifying characteristics in the key yet. If Holocentropus is correct, then Holocentropus flavus and Holocentropus interruptus are the two likely possibilities based on range, but I was not able to find a description of their 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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Report at a Glance

General RegionIowa
Specific LocationMcleod run
Dates Fished12-31-10
Time of Day4:30 pm
Fish Caught16" Rainbow

Details and Discussion

Benjlan
Benjlan's profile picture
Cedar Rapids lowa

Posts: 54
Benjlan on Jan 6, 2011January 6th, 2011, 2:51 pm EST
Got this big boy on a flashback pheasant tail bead head #16ish. The very next cast was a 8" brookie


Benjlan
Benjlan's profile picture
Cedar Rapids lowa

Posts: 54
Benjlan on Jan 6, 2011January 6th, 2011, 3:01 pm EST
Sorry can't get the photo to attach.
Jmd123
Jmd123's profile picture
Oscoda, MI

Posts: 2474
Jmd123 on Jan 6, 2011January 6th, 2011, 3:03 pm EST
Keep trying man, we want to see it!!

Jonathon
No matter how big the one you just caught is, there's always a bigger one out there somewhere...
Benjlan
Benjlan's profile picture
Cedar Rapids lowa

Posts: 54
Benjlan on Jan 13, 2011January 13th, 2011, 1:07 am EST
Thanks for all the help everyone
Rckymtn_fsh
Rckymtn_fsh's profile picture
Divide, CO

Posts: 12
Rckymtn_fsh on Jan 16, 2011January 16th, 2011, 5:32 am EST
Very nice!! Congrats!
"These brook trout will strike any fly you present, provided you don't get close enough to present it."
-- Dick Blalock

Jmd123
Jmd123's profile picture
Oscoda, MI

Posts: 2474
Jmd123 on Jan 19, 2011January 19th, 2011, 9:13 am EST
Yup, that's a "purdy" one there, Ben!

Jonathon
No matter how big the one you just caught is, there's always a bigger one out there somewhere...

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