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.
Option 1 | Option 2 |
---|---|
Foretibiae each with preapical spur (sf 19.557) | Foretibiae without preapical spurs |
Adults as in sf 10.191 | |
Remaining families: Glossosomatidae and Hydroptilidae | |
1 Example Specimen | 5 Example Specimens |
Rhyacophilidae Continue to the Key to Genera of Rhyacophilidae Adults | Go to Couplet 7 |