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Actual Size: ½ – ¾”

Characteristics:  Flattened body, metallic steel gray in color; covered with dull gray-silver scales

Legs: 6

Antennae: Yes

Wings: No

Tails: 3

Habitat: Usually in moist or humid areas in properties, including basements, bathrooms, etc.


  • Also known as firebrats.
  • Do not have wings and move in a quick fish-like manner.
  • Known for destructive feeding habits, damaging clothing, paper, and wallpaper.

Silverfish in Salina

Silverfish are a unique insect that often comes into homes in the Salina area. They have enzymes in their gut that digest cellulose and will inhabit bookcases, closets, and places where books and clothing are available.  Since the bodies of these insects are flattened, they can squeeze into the tightest cracks and crevices, even within narrow book bindings, the loose pages of books, and corrugated cardboard. Silverfish can move sideways or even jump when disturbed.

Silverfish Habitat

Silverfish cannot survive without humidity and will hide during the day in high-moisture areas like laundry rooms, under kitchen and bathroom sinks, and in crawl spaces. Silverfish are pests of paper, particularly paper with a glazed finish. They are especially fond of the sizing in paper products, which may consist of starch, dextrin, casein, gum, and glue. They consume both carbohydrates and proteins and can also be cannibalistic, eating cast skins of dead and injured individuals.

Silverfish Behaviors, Threats, or Dangers

Silverfish move in a very quick fish-like manner. If the object they are hiding beneath is moved, they will dart toward another secluded place.  Silverfish do not bite or sting, but they can cause significant damage to personal items and food sources. Silverfish have weak jaws, causing them to scrape instead of bite. Their scraping activity results in holes in fabric and clothing, and discoloration of books, paper products, and wallpaper. Silverfish can contaminate dry foods such as cereals, flour, pasta, and pet food. If you have excess silverfish in your Salina property, contact your local exterminators for help.

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