Silverfish
Scientific Name: Lepisma saccharina
Order & Family: Zygentoma (formerly Thysanura); Lepismatidae
Size: 12 to 19 mm (0.5 to 0.75 inches)

Natural Habitat
Found worldwide in moist, humid environments, especially within homes (basements, bathrooms, kitchens, attics) where they can hide in dark crevices.
Diet & Feeding
Polyphagous scavengers that feed on carbohydrates such as sugars and starches. Common food sources include paper, book bindings, wallpaper paste, glue in boxes, clothing (cotton, linen), and dried food products (flour, oats).
Behavior Patterns
They are nocturnal and photophobic (move quickly away from light). They do not fly but scuttle rapidly. They can live for several years and molt throughout their adulthood.
Risks & Benefits
Risks: While they do not bite or spread disease, they are considered household pests because their feeding habits can cause significant damage to books, documents, photographs, wallpaper, and clothing. Benefits: None in a household setting, though they are decomposers in nature.
Identified on: 3/3/2026