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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.

Lateral view of a Onocosmoecus (Limnephilidae) (Great Late-Summer Sedge) Caddisfly Larva from the Yakima River in Washington
This specimen keys pretty easily to Onocosmoecus, and it closely resembles a specimen from Alaska which caddis expert Dave Ruiter recognized as this genus. As with that specimen, the only species in the genus documented in this area is Onocosmoecus unicolor, but Dave suggested for that specimen that there might be multiple not-yet-distinguished species under the unicolor umbrella and it would be best to stick with the genus-level ID. I'm doing the same for this one.
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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You can create new topics in this section from each specimen's page in the insects section.
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Jan 17, 2019
by Jmd123
Jun 24, 2016
by Jmd123
Jun 9, 2016
by Troutnut
Mar 23, 2016
by Martinlf
Jan 31, 2016
by PaulRoberts
Nov 10, 2015
by Sherryspinn
Aug 20, 2014
by Entoman
Mar 28, 2014
by Entoman
Chimarra [Page: 1, 2]
Apr 3, 2007 by GONZO in Chimarra Caddisfly Larva
Feb 24, 2014
by Brookyman
Jan 20, 2014
by Wbranch
Mar 30, 2013
by Troutnut
Mar 27, 2013
by Feathers5
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