Silverfish

Scientific Name: Lepisma saccharinum

Order & Family: Order: Zygentoma; Family: Lepismatidae

Size: Typically measures between 0.5 to 1 inch (12-25 mm) in length.

Silverfish

Natural Habitat

Typically found in dark, damp environments such as basements, bathrooms, and attics. They prefer high humidity and often hide in crevices during the day.

Diet & Feeding

They feed on carbohydrates, particularly sugars and starches. Common food sources include book bindings, paper, carpet glue, clothing (synthetic and silk), wallpaper paste, and dandruff.

Behavior Patterns

Nocturnal insects that move rapidly with a wiggling motion resembling a swimming fish. They are extremely hardy and can survive for weeks without food.

Risks & Benefits

Risks: They are considered household pests because they can damage books, wallpaper, clothing, and food packaging. They do not bite or sting humans and are not known to spread disease. Benefits: They are recyclers in the ecosystem but offer no significant benefit in a domestic setting.

Identified on: 2/25/2026