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.
In some parts of Wisconsin, local anglers speak fondly of "The No-Name Hatch." They use the term specifically for a hatch of Baetisca laurentina mayflies.
This common name refers to only one genus. Click its scientific name to learn more.