Do ladybugs eat clothes

No, ladybugs trapped inside houses do not eat clothing. The insects in question (Coccinellidae family) number among the world's non-herbivorous predators -- except for the Epilachninae subfamily that eats fungus, mildew, mushrooms and plant parts -- and will not touch clothing, fabrics or houseplants. They instead will die of dehydration, unless they access dripping faucets or shower water or water bowls, and of starvation.