If You Find This Insect in Your Home, Here’s What It Means

probably your great-grandmother’s pantry.

Their scientific name is Lepisma saccharina, and they belong to an ancient group of insects called Zygentoma. They’re called silverfish because of their metallic, silvery-blue color and their fish-like, wiggling movement.

Key characteristics:

Size: About ½ to 1 inch long (12-25 mm)

Color: Silvery-gray to metallic blue

Shape: Tapered, carrot-shaped body with three long bristles at the rear

Movement: Fast, darting, wiggly—they move like fish swimming

Wings: None—they don’t fly

Diet: Carbohydrates, sugars, starches, and cellulose

Lifespan: 2-8 years (yes, years!)

Silverfish