Well now it's blooming carpet moths! When we moved into this house ten years ago, all the carpets were a lovely wool-mix and just the colour we liked, and I think when they were laid by the previous owners, they were anti-moth treated. But the treatment has worn away and now we have quite a few holes, and these blasted tiny moths appear on the walls.
I keep spraying the eaten-away holes, but my sister tells me the only solution is to replace all our carpeting with non-wool stuff.
That would be one heck of a kerfuffle, and an enormous expense, so holes it will be.
Maybe the huge spiders could be persuaded to eat up the moths?