Caddis pupa variant tie on Hanak 450bl jig hook and Hanak tungsten bead with Hends materials. This fly is made in combination with chartreuse tread ribbing over a hare ears body and CDC collar for a better presentation.
The main target fish species are trout and grayling but it's an excellent option for chub, bass, and other fresh waters fish..
Sizes charts for hooks and beads
# 12 = 4mm
# 14 = 3.5mm
# 16 = 3mm
# 18 = 2.5mm
The best bead color acording to my experience for this fly is Silver and Gold for regular type of water when the fish are fresh, and Bronze & Copper for the situation when water is high pressured with fish more stressed. In all those situation dont forget a big influence over the bead color is the clarity of the water the color of the river bottom and how suny the day is.