A partridge and orange fly is a classic, simple artificial wet fly used in fly fishing to catch trout and grayling.
The Partridge and Orange is one of the oldest, most resilient artificial fly patterns in existence, with a history spanning over 500 years. It belongs to a historic class of wet flies known as North Country Spiders, which originated in the upland, limestone rivers of Northern England (particularly Yorkshire and the River Wharfe). The history of the fly is deeply intertwined with Pearsall's Gossamer Silk. In the 1800s, English silk makers began producing Color #6a (Hot Orange) thread specifically for fly tyers. When wet, this specific silk thread turns a translucent, glowing, olive-orange hue that perfectly mimics the translucent abdomen of a real pupa or nymph underwater—a trait that modern synthetics still struggle to replicate perfectly.
