Gray Silverfish vs Texas Cave Silverfish

Side-by-side species comparison

Attribute Gray Silverfish Texas Cave Silverfish
Scientific Name Ctenolepisma longicaudatum Texoreddellia texensis
Order Zygentoma Zygentoma
Family Lepismatidae Nicoletiidae
Size 10-15 mm 8-15 mm
Habitat Underground Caves
Diet Omnivores Fungus Feeders
Regions Europe United States
Conservation Least Concern Vulnerable

Gray Silverfish

An invasive silverfish species spreading rapidly through northern Europe. It is larger and more uniformly gray than the common silverfish.

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Did You Know?

It has become a major household pest in Scandinavia since the 2000s.

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.