34|40 : 40 Day Challenge

This past stretch of the 40 Day Challenge brought the Beadhead Pheasant Tail Nymph to completion and began the next pattern, the Purple Haze. Finishing the Pheasant Tail was a reminder of how much of a nymph’s effectiveness is determined before the fly even looks finished. Choosing the right bead size, adding lead wraps, measuring tail fibers, and building a tapered abdomen all influence how the fly sinks and drifts through the water column. The final steps—forming the thorax, pulling the wingcase forward, and setting the legs—brought everything into balance. It’s a pattern built in layers, where the quiet structural decisions underneath matter just as much as the materials you see on the outside.

After working below the surface for the past week, it felt natural to shift back to a dry fly. The next pattern in the sequence is the Purple Haze, a fly with deep roots in Montana fly fishing. Originally developed by Bitterroot River guide Andy Carlson, the Purple Haze is essentially a variation of the Parachute Adams with a purple body. It’s become a favorite searching dry fly because of its visibility, versatility, and ability to suggest a wide range of insects depending on how it’s fished.

Starting the Purple Haze returned the focus to proportion and balance on the surface. Securing purple thread to the hook shank laid the foundation, and tying in a small bunch of moose body hair formed the tail that helps stabilize the fly on the water. Even at this early stage, it’s clear how much dry flies rely on subtle proportions. Tail length, body taper, and the placement of the parachute post will all determine how the fly sits in the film and how visible it is to both angler and fish.

With only a handful of days remaining in the challenge, the goal stays the same: slow down, pay attention to the small details, and let each fly build on the one before it. The Purple Haze will take shape over the next few days as the body, parachute post, and hackle come together. Like the flies before it, the process is less about rushing to the finished pattern and more about understanding how each step contributes to the final result.