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

Natural Habitat
Found indoors in dark, humid environments such as basements, bathrooms, and attics; also inhabits crevices in kitchens.
Diet & Feeding
Consumes starchy materials and sugars, including paper, book glue, fabric, carpet, dead insects, wallpaper paste, and cardboard.
Behavior Patterns
Nocturnal and moves quickly with a wiggling motion resembling a swimming fish. They are long-lived (can live up to 8 years) and molt throughout their lives.
Risks & Benefits
Generally harmless to humans (they do not bite or spread disease), but are considered pests because they can damage books, photographs, documents, wallpaper, and clothing.
Identified on: 2/21/2026