Silverfish

Natural Habitat

Silverfish prefer cool, dark, and damp environments with high humidity (75-95%). They are commonly found in bathrooms, basements, kitchens, attics, and garages, often hiding in cracks and crevices.

Diet & Feeding

They feed on carbohydrates and starches, including paper, book glue, wallpaper paste, clothing (silk, cotton, linen), dead insects, and dried foods like cereal or flour.

Behavior Patterns

Silverfish are nocturnal and move very quickly with a fish-like wiggling motion (hence the name). They are primitive insects that do not undergo metamorphosis but instead molt throughout their lives. They are long-lived for insects, sometimes living up to 2-8 years.

Risks & Benefits

Risks: They are considered household pests because they can cause significant damage to books, documents, wallpaper, and clothing by eating them. They can also contaminate food. Benefits: They do not bite, sting, or transmit diseases to humans. In an ecosystem, they act as decomposers.

Identified on: 2/23/2026