The story behind my adoption of the emerald caddis pupa is contained in my post of 01/01/2012. The same post also contains a materials table, and construction of this fly follows the steps outlined by Gary LaFontaine in his classic book; Caddisflies.
Unlike the go2 sparkle pupa, the emerald caddis pupa’s effectiveness seems to span the entire season. I attribute much of its performance to the emerald color of the body, and on rare occasions, when I was able to corral an adult caddis on the stream, I observed the matching color at the tip of the abdomen. Caddis seem to be universally prevalent on western rivers and streams, and I suspect the resident trout are familiar with the emerald color and recognize it as a tasty source of protein.
When I approach a stream, I generally select a hares ear nymph or salvation nymph among my first offerings, and this probably handicaps the emerald caddis pupa. I resort to it, when the preferred choices fail to deliver, so I utilize it in more demanding conditions. In spite of this hindrance to success, the emerald pupa delivers results on a fairly consistent basis. Perhaps I should elevate it on my subsurface fly ranking.
When I took stock of my caddis pupa, I noted that the emerald version was depleted to thirty-one, so I approached my vice and churned out nine additional models to increase my inventory to forty. I am certain that the emerald caddis will once again attract a fair number of trout to my net in 2020.