named as a Czech Nymph by Hackles & Wings, what i’m seeing in this lovely bug is an all-purpous, any time, anywhere caddis larvae imitation that’s bound to be the ticket whichever method you choose whether that be tightline, cast up-across or downstream, on a dropper beneath a dry or indicator. as always, match colour and sizes to match your local bugs and include or delete the dubbing hotspot, specially if you’re targeting trout.
i seriously doubt the darkened head would ruin a hungry fish’s appetite so, in a pinch you can pull out dubbing from the rest of the body while on the water and have a gammarus/freshwater shrimp ready to go !

here’s the materials list-

Thread: Uni 8/0 Tan
Hook: Tiemco 2487 size 10 (ditch that and use a nice, similarly shaped barbless hook instead !)
Adhesive Lead Foil
Body: Rabbit Dubbing, light green and SLF
Hot Spot: Orange SLF
Thorax: Natural Hares Mask
Back: Body Stretch, transparent
Ribbing: Uni-french, gold and Nylon Thread 0.15mm

and here’s how to tie this little slim & trim quick-sinking beauty. enjoy !