Article Nº 0822 Insect, spider or other land arthropod Vol. I · p. 487
Caruncho
Explains 'caruncho', the frass of wood-boring insects, and names the beetle Stromatium unicolor as the most damaging wood-borer in Madeiran buildings and furniture.
Among the insects that gnaw wood, and whose excrement is called caruncho, the one that stands out in these islands for the damage it causes is a beetle, Stromatium unicolor. It is characteristic of inhabited places, and its larva lives in the timber of buildings and furniture.