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.
A photo showing the minor details on the nymph of this rarely collected mayfly
This mayfly was collected from the Big Thompson River in Montana on November 30th, 1999 and added to Troutnut.com by Bnewell on June 26th, 2011.