Introduction:  All members of the order Thysanura have a teardrop/carrot/fish-shaped body and get the common name of bristletail because of their 3 long, bristlelike or taillike appendages on the posterior/rear end of their body. Silverfish is a common name for species of this group whose bodies are covered with silvery scales. Silverfish are found throughout the United States and the world.

Recognition:  Adult body length, not including tails, about ½-3/4” (12-19mm). Wingless with flattened body. Shape teardrop/carrot/fishlike, tapering from head to rear, and generally covered with scales. Color silvery to gun metal. 1 species with dark lines running length of body. Antennae long, threadlike.

Habits:  All these silverfish species hide during the day and prefer to hide or rest in tight cracks or crevices. They can be found almost anywhere in a house including living rooms, bedrooms, bathrooms, attics, basements, and garages. Silverfish infest commercial structures such as offices, stores, and libraries.


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