Texas Cave Silverfish vs Cave Bark Louse

Side-by-side species comparison

Attribute Texas Cave Silverfish Cave Bark Louse
Scientific Name Texoreddellia texensis Prionoglaris stygia
Order Zygentoma Psocoptera
Family Nicoletiidae Prionoglarididae
Size 8-15 mm 2-3 mm
Habitat Caves Caves
Diet Fungus Feeders Fungus Feeders
Regions United States Southern Europe
Conservation Vulnerable Data Deficient

Texas Cave Silverfish

A troglobitic silverfish endemic to limestone caves in central Texas. It has no eyes and a pale, elongated body.

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Did You Know?

The genus Texoreddellia includes several species spread across 160,000 square kilometers of Texas caves.

Cave Bark Louse

A primitive cave-dwelling bark louse found in European caves. It retains many ancestral features making it important for understanding psocid evolution.

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Did You Know?

It is considered one of the most primitive living members of the order Psocoptera.