Overview

The Umpqua Mimic May in Cahill is a versatile and highly effective dry fly designed to match a broad range of pale-colored mayfly hatches. With its slim, realistic profile and subtle coloration, this pattern is ideal when trout are feeding selectively on lighter-toned adult mayflies. The pale yellowish-tan Cahill body mimics many key insect species, including Pale Evening Duns and Light Cahills, making it a dependable option throughout much of the season.

Its carefully proportioned upright wings and high-quality hackle ensure reliable floatation in both calm and riffled water, while the delicate tail and tapered body provide the lifelike silhouette needed to fool discerning fish. The Mimic May's balanced construction allows for natural drift without drag, which is critical during technical dry fly presentations. This pattern is at its best during hatch-heavy mornings and evenings on clear streams, spring creeks, and even lake edges where insect activity concentrates near the surface.Read More +