UV Caddis Pupa

UVF is the fluorescent wavelength in bright colours we know from paints and dyes. This can be an advantage in different light and water conditions and colours. UVR or Ultra Violet Reflectance is a UV light that cannot be seen with the naked eye for humans. However it can be seen and is apparently used by most insects and animals. There eyes are constructed with different rods and cones that are tuned to UV wavelengths. Although I have never used UV materials in my tying before with the exception of fluorescent flosses, threads and bead heads I am looking forward … Continue reading UV Caddis Pupa