Common Silverfish

Scientific Name: Lepisma saccharinum

Order & Family: Order Zygentoma, Family Lepismatidae

Size: 12–19 mm (0.5–0.75 inches) in length

Common Silverfish

Natural Habitat

Damp, dark, and cool areas; frequently found in basements, bathrooms, kitchens, and attics.

Diet & Feeding

Starch-rich substances including book bindings, glue, paper, photos, sugar, hair, and dandruff.

Behavior Patterns

Nocturnal and extremely fast-moving with a fish-like swimming motion; they undergo hemimetabolous metamorphosis and can live up to eight years.

Risks & Benefits

Generally harmless to humans but considered a household pest as they can cause significant damage to books and textiles. They help break down organic debris in the ecosystem.

Identified on: 1/13/2026