Ozark Cave Silverfish vs Tropical Book Louse

Side-by-side species comparison

Attribute Ozark Cave Silverfish Tropical Book Louse
Scientific Name Speleonycta ozarkensis Liposcelis entomophila
Order Zygentoma Psocoptera
Family Nicoletiidae Liposcelididae
Size 8-12 mm 0.7-1.2 mm
Habitat Caves Indoors
Diet Fungus Feeders Fungus Feeders
Regions United States Worldwide
Conservation Vulnerable Least Concern

Ozark Cave Silverfish

A blind cave-adapted silverfish found in caves of the Ozark Highlands. It is completely white and eyeless.

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Did You Know?

It is the only known species of its genus, endemic to Ozark caves.

Tropical Book Louse

A cosmopolitan booklouse frequently found in insect collections and herbaria. It feeds on dead insects and dried plant specimens.

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Did You Know?

Its species name 'entomophila' means 'insect-loving,' reflecting its habit of eating pinned insect specimens.