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.

Featured forum activity

Re: UV spectrum and trout
In General Discussion by Martinlf

Re: closing the gender gap in flyfishing
In General Discussion by Konchu (Smallflyguy replied)

Re: Fishing Kupa River, Slovenia
In Fishing Reports by Slocum (Fish1 replied)

Re: Clinger nymphs are shaped that way to hang in really fast currents. Really?
In the Mayfly Genus Rhithrogena by Entoman (Steamntrout replied)

Male Stenonema vicarium (March Brown) Mayfly Dun Pictures

This is the only Heptageniid mayfly I saw hatch on May 24, 2004, and luckily it floated right by me.

Edit: Gonzo confirmed most likely vicarium 06.21.12