Isonychia bicolor have just started as the drakes continue- (Bug Doctor J.G Miller image). John will be featured in my "Entomo-Logique" department/column in my new online journal coming in two weeks- stay tuned!)
The heavy rains and storms have raise the rivers but lowered water temps. Perfect hatching conditions of the big meaty Isonychias. These are very fast swimming nymphs that hatch from the water on the Muskegon. They really catch the trout's eyes and they and the swallows go mad for them!
They emerge sporadically all day into the evening..The larger trout will target both the swimming/emerging nymphs and hammer the adults.
( my Iso-crack wiggle nymph swung down-and- across on heavy tippets will bring vicious strikes!)
(Here are two CDC adults in the traditional and FrostyFly version)
Here is another look at that magnificent beast of a brown I caught a week ago on the early gray drake spinner fall..one of my finest ever! (that was my 45." salmon/steelhead net
Cheers!
MS