When prince nymphs go bad . . . when they pledge allegiance to Sauron, they become the Dark Lord, with a black body instead of green.
A rare western hatch of isonychia caddis is the precise imitative case for the dark lord in approximately size 14. Larger sizes could be a number of stonefly nymph species, smaller sizes could be micro-mayflies. Let the force of darkness guide your decision.
Price: $1.00