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.

Stream photos

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Amphizoa Beetle Larva Amphizoa Beetle Larva

Dorsal view of a Amphizoa (Amphizoidae) Beetle Larva from Sears Creek in Washington

This is the first of it's family I've seen, collected from a tiny, fishless stream in the Cascades. The three species of this genus all live in the Northwest and are predators that primarily eat stonefly nymphs Merritt R.W., Cummins, K.W., and Berg, M.B. (2019).

5 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.

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Tiny Black Caddis hatch, late fall - Nov 26 to be exact_ Spring Creek Southern MO, Page 2

This topic is about the Caddisfly Family Hydroptilidae

Both anglers and entomologists know these diminutive flies as "Microcaddisflies." The term refers to this family specifically, not to all tiny caddisflies. Many are large enough for imitation on small hooks, but some are impossibly small, as tiny as hook size 36.

Like the Tricorythodes mayflies, Microcaddisflies can be important to trout because of their extreme abundance in certian waters.

Example specimens

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Male Dibusa angata (Microcaddis) Caddisfly Adult

Male Dibusa angata (Hydroptilidae) (Microcaddis) Caddisfly Adult from the Namekagon River in Wisconsin

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Dibusa angata (Microcaddis) Caddisfly Adult

Lateral view of a Dibusa angata (Hydroptilidae) (Microcaddis) Caddisfly Adult from Spring Creek in Wisconsin

I'm tentatively classifying this one as Dibusa angata because I cannot see any ocelli in my dorsal view of the head (and because it has a single spur on each front tibia). However, sometimes they can be difficult to spot when obscured behind setae in general, so I'm not 100 % sure on this one. If there are ocelli I missed, then based on ranges and colors the genus ought to be Stactobiella.

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Hydroptila (Varicolored Microcaddis) Caddisfly Larva

Hydroptila (Hydroptilidae) (Varicolored Microcaddis) Caddisfly Larva from the Flathead River-Upper in Montana

Motrout

Posts: 319

Motrout on Jun 11, 2014June 11th, 2014, 5:41 pm EDT

Goodness.

At least everything ended with you in a better fly fishing locale than Missouri......

I'm still here but I manage to catch a trout every once in awhile anyway:)

"I don't know what fly fishing teaches us, but I think it's something we need to know."-John Gierach
http://fishingintheozarks.blogspot.com/

Pdcox
Kansas city

Posts: 12

Pdcox on Dec 10, 2019December 10th, 2019, 11:54 pm EST

GLad I stumbled on this thread. Was fishing the Niangua and experienced what i thought was a hatch of smuts. However after finding this conversation, it makes a lot of sense that i found black caddis. Now that is a first for me. I persuaded a trout to hand over a few , and here they are.

https://pauldavid.smugmug.com/Bugs/i-TNGtZcM
https://pauldavid.smugmug.com/Bugs/i-ggdDd2n