Tiny Baetis mayflies are perhaps the most commonly encountered and imitated by anglers on all American trout streams due to their great abundance, widespread distribution, and trout-friendly emergence habits.
This PMD spinner belongs to the subspecies Ephemerella dorothea infrequens.
This mayfly was collected from the Touchet River in Washington on June 15th, 2011 and added to Troutnut.com by Bnewell on June 24th, 2011.