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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 RegionCentral PA
Specific LocationPenns Creek C&R water
Dates FishedSaturday April 26 2008
Time of Day8:30-15:00
Fish CaughtFour wild browns
Conditions & HatchesArrived on the water to clouds of Hendrickson spinners, a fair number of March Brown spinners and a smattering of grannom caddis.
Water was 51*, slightly murky (well actually a beatiful limestone green), and in the process of receeding from rains last weekend.

Details and Discussion

JOHNW
JOHNW's profile picture
Chambersburg, PA

Posts: 452
JOHNW on Apr 27, 2008April 27th, 2008, 11:41 am EDT
Only four risers were seen the entire day. All fish taken were on the edge of fairly heavy runs and taken on march brown wet flies.
While the catching was less than stellar the wild life observed and the pure beauty of the environs made it a very enjoyable day.
"old habits are hard to kill once you have gray in your beard" -Old Red Barn
LittleJ
Hollidaysburg Pa

Posts: 251
LittleJ on Apr 27, 2008April 27th, 2008, 3:08 pm EDT
It seems as though those hot days during the grannoms sure put things in high gear.

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