Isonychia sadleri

Hi Folks, Been guiding trout on the last two days.  Fly fishing the Lamoille drainage and casting lots of dry flies.  The Lamoille main stem is still too hot to fish.  It was 74 degrees last night at 5pm and 69 degrees to 70 degrees this morning at 6am.  So we have been fishing tributaries of the main stem.  Lots of Isonychia shucks on rocks and saw a good hatch last night with rising fish.  Fished a stream with lots of rock and boulders. The temperature of the stream we fished was 67 degrees.  Isonychia also goes by the name Leadwing coachman or Isonychia bicolor.  Very significant hatch in late summer to early fall as it is a big bug #12 to #14 and it hatches for a long period of time and throughout the day with spinner activity at dusk.  It is a swimming may fly and moving the fly during and at the end of the drift often produces strikes.  Simply put the trout see this macro invertebrate for an extended period of time and it is a big morsel of food for them.  For nymphs I like to use pheasant tails, zug bugs, and exact nymphs ties in claret with a white dental floss back.  For the dry I like a gray wulff, adams, or hare's ear parachute.  Last night we got small wild rainbows to eat the parachute version.  Good explosive strikes as the Isonychia typically crawls out on to rocks to hatch and on windy days the duns get blown onto the water and are easy pickings for the fish. This am I changed directions with my guest and we fly fished small brook trout water for natives.  Lots and lots of action and beautifully colored brookies.  All caught on large stimulators.  Hopefully things will cool off and we can gt back on the big water for trout and enjoy fishing the Isonychia hatch.  Will be chasing smallies the next few days.  Remember to clean your gear and keep the non-native species at home.  Have Fun, Willy