Bugs that eat suits are typically fabric pests, and the most common of these is the clothing moth. These moths lay their eggs in fabrics like wool or fur, and when the larvae hatch they start to feed on the fibers. This can cause irreparable damage to your favorite suit, so it's important to be aware of these pests and take steps to prevent them from infesting your wardrobe.
There are a few things you can do to protect your suits from fabric-eating bugs. First, keep them stored in a cool, dry place. Moths prefer warm, humid environments, so storing your suits in a climate-controlled closet or chest will help deter them. You can also purchase special cedar hangers or moth balls to put in your storage area; both of these release chemicals that repel moths. Finally, make sure you regularly inspect your suits for signs of infestation (e.g., small holes in the fabric) and take them to a professional for cleaning if you notice any damage.