Hexagenia Mayflies are very easy to identify. They hatch late in the evening, and are huge.  Hex hatches are big trout food.

The Nymphs burrow into the silty bottoms of some lakes and very slow moving streams.  They are one of the few may fly nymphs that eat other insects.

There are four stages of this hatch that the angler should be aware of: nymph, emerger, dun and spinner.

Hex nymphs can start leaving their burrows as early as 7:00 in the evening and a nymph fished along the bottom can get some strikes. Major feeding activity at the surface is the last hour at dark.

Fly length 1.00 inches (25mm)

  These are Pro tied on Japanese chemically sharpened hooks.