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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 Zapada cinctipes (Nemouridae) (Tiny Winter Black) Stonefly Nymph from the Yakima River in Washington
Nymphs of this species were fairly common in late-winter kick net samples from the upper Yakima River. Although I could not find a key to species of Zapada nymphs, a revision of the Nemouridae family by Baumann (1975) includes the following helpful sentence: "2 cervical gills on each side of midline, 1 arising inside and 1 outside of lateral cervical sclerites, usually single and elongate, sometimes constricted but with 3 or 4 branches arising beyond gill base in Zapada cinctipes." This specimen clearly has the branches and is within the range of that species.
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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Pyrenees
Pyrenees's profile picture
Spain

Posts: 1
Pyrenees on Apr 3, 2017April 3rd, 2017, 7:44 am EDT
The zebra trout: Trout that resisted the last glaciation.
FEATURES OF OUR NATIVE TROUT, ZEBRA TROUT:

It has many small black and red circles surrounded by a white halo and also has four dark stripes crossing his Body.

Great adaptation to our climate: large avenues, water stress and high water temperatures.

In result of the adaptation she is suspicious to predators.

The wide avenues of water and the rivers rocky mountain background seems they cause the morphology of trout oversizing their pectoral fins.

The other main feature of this type of brown trout is its speed when attacking flies.

Great power.

More than 10 spots on the Operculum.

To learn more please check this:http://www.pyreneesflyfishing.com/the-zebra-trout-trout-that-resisted-the-last-glaciation/
sss

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