BH Leech Mohair Purple - Bead Head. It is widely recognised that leeches tend to be night critters, they however can be fished all day everyday as it is common for a renegade leech to be out during the brighter hours, If you are determined to fish later in the day then the Purple Beadhead Mohair Leech is an essential. The Purple Bead Head Mohair Leech being a slightly brighter variant of the Mohair Leech collection has the ability to stand out more proudly as the light is waning. Leeches come in a variety of sizes and colours and it is important for any angler to have a small collection of these wondrous imitations to work the correct fly in the right conditions.