The White Miller fly pattern is an effective choice for imitating the caddisfly, particularly suitable for evening and night fishing when these insects are most active. Its white body and wings are designed to stand out in lower light conditions, making it highly visible to fish. This fly is best used on the surface of streams and rivers, mimicking the fluttering action of the caddisfly. Anglers should employ a combination of dead drifts and subtle twitches to simulate the natural movements of the insect, attracting strikes from trout and other freshwater species.