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 |
---|---|
Vein MA of forewings forming a fairly symmetrical fork | Vein MA of forewings not as at left |
Veins MP2 and IMP extend less than 3/4 the distance to the base of vein MP (source figs 13.188, 13.189) | Vein MA2 attached basally by a crossvein |
Male forceps two or three-segmented | Male forceps one-segmented |
Thorax usually black or gray | Thorax usually brown |
5 Example Specimens | 2 Example Specimens |
Leptohyphidae | Caenidae |