Get ready for spring fly fishing season with Hogan Brown’s Spring Fling Caddis Pupa — a legendary and reliable fly pattern that’s been a go-to in fly boxes across the western U.S. for years. Whether you’re swinging soft hackles in riffles or dead-drifting nymphs through pocket water, this caddis pupa gets results.

In this step-by-step fly tying tutorial, Hogan Brown walks you through how to tie this ultra-effective caddis emerger/nymph hybrid, and explains why it’s so deadly in early spring when caddis begin to stir. This pattern imitates the vulnerable, emerging stage of the caddisfly — a favorite target for hungry trout.