They can say what they like, I will never believe those moths are consuming those walls.
It looks beautiful with them there anyway.
All their food (Lots of other bugs) and poop are depositied and is acidic and will rip the fine finish right off the walls.
UNNM entomologists were amazed at the # of plain ‘ol ‘Millier’ Moths that were attracted to the newly constructed triangular shape of our LORAN X-mitting tower as well as the 100,000 watts of power @ 100Khrts. The moths had thought they found their master mother creator a year after we turned on the transmitter the middle of the New Mexico desert. Those damn moths were eating the concrete and rubber caulking holding the building together as well as stripping every live plant for miles. I had special made 10’long big blue bug zappers for them. The birds loved that part because piles of fried moths are pretty good for breakfast, I guess.
Insects are specialists. We dont know exactly what they are specialists at, but they are very good at doing what ever they do. And they are some of the most thorough creatures on the planet.