Target fish: trout / grayling
DRESSING:
Hook: 8 long 3X
Mounting thread: black
Tail: two quill biots
Underbody: lead wire
Body: threaded, dark chenille on top, yellow or chartrois floss underneath
Thorax: yellow (or chartois) floss
Wing-case: pheasant fibers
Legs: Speckled soft hackle mounted flat parallel to the hook's shank.
Head: black
Notes: An imitation of the large stonefly nymphs (genera perla or perlodes).