Pattern Database

The PMD Biot Nymph is designed to imitate the nymphal stage of Pale Morning Dun (PMD) mayflies, a prolific and important hatch on many Western and Eastern tailwaters. PMD nymphs are slim, active swimmers, and trout often key in on them heavily in the days leading up to—and during—the hatch. Using a goose biot abdomen gives this pattern its defining feature: crisp segmentation and a natural taper that closely matches the real insect. Combined with soft natural materials in the thorax and tail, the PMD Biot Nymph excels at imitating drifting and emerging nymphs in clear, technical water. This style of biot-bodied nymph has become a favorite among anglers who value realism over flash, especially when fishing pressured trout or subtle presentations. This refined material combination creates a slender, segmented profile with lifelike texture—ideal for PMD hatches and selective trout.