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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.

Caudatella edmundsi Mayfly Nymph Pictures

This species was previously know only from the nymph. I reared nymphs and we described the adults and eggs of this interesting species.

This mayfly was collected from the Vermillion River in Montana on July 20th, 2010 and added to Troutnut.com by Bnewell on June 26th, 2011.

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