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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Female Skwala (Large Springfly) Stonefly Adult Female Skwala (Large Springfly) Stonefly Adult

Lateral view of a Female Skwala (Perlodidae) (Large Springfly) Stonefly Adult from Mystery Creek #308 in Washington

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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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Polymitarcyidae Question

Steamntrout
Posts: 3

Steamntrout on Jun 22, 2017June 22nd, 2017, 8:32 am EDT

What size are these nymphs & Sub Imago's?

Crepuscular

Boiling Springs, PA

Posts: 920

Crepuscular on Jun 22, 2017June 22nd, 2017, 11:20 pm EDT

What size are these nymphs & Sub Imago's?

"Standard" hook sizes 14 for the subs. Nymphs the same 1xl. Around here on the larger waters major rivers, they are 14-12. I'll see if I can dig up a photo.

I found a couple from the yellow breeches. size in mm