The Cinnamon Caddisflies, or Cinnamon Sedges whichever name you prefer, are the most common caddisflies found in the Eastern United States. They have a very long hatch period that last up to three months on some streams. It’s a net-spinning caddisfly that is found in tailwaters, some spring creeks and many freestone streams. Imitations of this caddisfly is a must for Eastern trout anglers.