Synonyms for Lappet (same or very similar meaning)
WordNet sense 1 (a fleshy wrinkled and often brightly colored fold of skin hanging from the neck or throat of certain birds (chickens and turkeys) or lizards):
wattleWordNet sense 2 (medium-sized hairy moths; larvae are lappet caterpillars):
lappet mothFrom the ODE community, based on WordNetadd/edit