Silverfish (often confused with Firebrat)
Scientific Name: Lepisma saccharina
Order & Family: Zygentoma (formerly Thysanura), Family Lepismatidae
Size: Typically 12–19 mm (0.5–0.75 inches) in length, excluding appendages.
Natural Habitat
Found in dark, damp environments with high humidity (75-95%) such as bathrooms, basements, attics, and kitchens. They often hide in cracks and crevices.
Diet & Feeding
Detritivores that consume matter containing polysaccharides, such as starches and dextrin in adhesives. This includes paper, book bindings, carpet, clothing, glue, sugar, hair, and dandruff.
Behavior Patterns
Nocturnal and moves in a wiggling motion resembling a fish. They are wingless insects that molt throughout their lives and can live for several years. They are fast runners and shy away from light.
Risks & Benefits
Generally harmless to humans (they do not bite or sting and are not known to transmit disease), but they are considered household pests because they can damage property like books, wallpaper, clothing, and pantry items. They can trigger allergies in some people.
Identified on: 3/7/2026