Observed this large specimen crawling on the side of the house this evening. Based on initial inspection and the general coloration, I thought it might be the same species as one that I photographed a few years ago and Taxon ID'd as a Brown Dun: http://www.washingtonflyfishing.com/gallery/showphoto.php?photo=11862&ppuser=5427 But in looking at the photos side by side, they're clearly different bugs. Plus, this one was about twice the size of the Brown Dun from before (a good 3/4" from head to butt, not counting the tails). Perhaps Roger or someone else can weigh in with a positive identification. Whatever happened to the innocent days when a bug was just a bug? Now everything is viewed as trout food.