You are talking about silverfish.

The body is slender and flat, with silver-gray fine scales, about 4 to 20 mm long. The antennae are long and filamentous, with two equally long tail whiskers and a longer middle tail whisker at the end of the abdomen, and chewing mouthparts.

Silverfish like foods rich in starch or polysaccharides, such as glucan in gelatin, paste, book bindings, photos, sugar, hair, soil, etc. For example, the one that often damages calligraphy and paintings is the Western silverfish (Lepisma saccharina), the one that eats clothes is the Ctenolepisma villosa, and the one that crawls on the kitchen walls is the Thermobia domestica. However, silverfish are not resistant to cotton, linen, silk and artificial fibers. They will even eat the corpses of other insects and their own shed skins. Even leather products, artificial fiber cloth, etc. will be eaten when hungry. However, silverfish can starve for months without harming their body functions.

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