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 one was surprisingly straightforward to identify. The lack of a sclerite at the base of the lateral hump narrows the field quite a bit, and the other options followed fairly obvious characteristics to Clostoeca, which only has one species, Clostoeca disjuncta.
Troutnut on Jun 17, 2006June 17th, 2006, 6:10 pm EDT
I saw something interesting tonight at the end of a completely unsuccessful trout fishing trip. It was dark and rainy and, for added darkness, I was under a bridge. I was looking around the shallows with my flashlight when I saw a very small rodent come running to shore from the middle of the river and disappear into the rocks.
It was so FAST that it had to be running across the surface rather than swimming. I didn't know they could do that!
Jason Neuswanger, Ph.D.
Troutnut and salmonid ecologist