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.

Outlet stream of Upper Titcomb Lake

From Titcomb Basin in Wyoming

Stream photos

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Holocentropus Caddisfly Larva Holocentropus Caddisfly Larva

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.

11 Recently Added Photos

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.

need help finding past thread

Creno
Grants Pass, OR

Posts: 302

Creno on Aug 23, 2017August 23rd, 2017, 2:10 pm EDT

a "few" years ago we had a thread about dead caddis on a rock covered with a white mold/fungus of some sort. Will someone help me find that thread? I am about to give up looking
thanks
creno

Millcreek
Healdsburg, CA

Posts: 344

Millcreek on Aug 23, 2017August 23rd, 2017, 3:40 pm EDT

Creno-

I vaguely remember something like that on here, but after looking for it I can't find it.

This may be of some help. Found it on Bugguide. Here's the link.

http://bugguide.net/node/view/207589

"If we knew what it was we were doing, it would not be called research, would it?"
-Albert Einstein

Creno
Grants Pass, OR

Posts: 302

Creno on Aug 23, 2017August 23rd, 2017, 3:44 pm EDT

thanks Millcreek! just what I was try to find! no wonder I could not find it on Troutnut! you da man!