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|
|Mature nymph 7.8-11.4 mm long (Funk et al. 2008)||Mature nymph 6.4-8.5 mm long (Funk et al. 2008)|
|Median ocellar tubercle sharp and relatively long (red box) ||Median ocellar tubercle blunt to moderately sharp and relatively short|
|Lateral frontoclypeal projections usually semilunar (green boxes above)||Lateral frontoclypeal projections moderately curved to straight |
|Middle and hind tibiae relatively long (Funk et al. 2008)||Middle and hind tibiae relatively short (Funk et al. 2008)|
3 Example Specimens
|Drunella cornuta||Drunella cornutella|