fecal shield
structure formed by the larvae of many species of beetles in the leaf beetle family, Chrysomelidae composed of the frass of the insect and often its exuviae, or bits of shed exoskeleton
en-US/ˈfikəl ˈʃild/
structure formed by the larvae of many species of beetles in the leaf beetle family, Chrysomelidae composed of the frass of the insect and often its exuviae, or bits of shed exoskeleton