Nymphs are swimmers.
Duns emerge in June and July beginning in late morning and running into the afternoon.
Spinners fall in late afternoon. Many people confuse these spinners for Trico’s. Flyfishers find this spinner unimportant.
Avg. Body Length- 7-9 mm. Size 16-18.
Wings- Med to Light Gray
Underbody- Tan to Med Brown
Body top- Dark Gray-Brown, Extremely Slender