Hawaiian Cave Spider vs Texas Cave Silverfish

Side-by-side species comparison

Attribute Hawaiian Cave Spider Texas Cave Silverfish
Scientific Name Adelocosa anops Texoreddellia texensis
Order Araneae Zygentoma
Family Lycosidae Nicoletiidae
Size 15-20 mm body length 8-15 mm
Habitat Caves Caves
Diet Omnivores Fungus Feeders
Regions Hawaii United States
Conservation Endangered Vulnerable

Hawaiian Cave Spider

A completely eyeless wolf spider found only in lava tube caves on Kauai. It is the first known blind wolf spider ever discovered.

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Did You Know?

It navigates in total darkness using vibration-sensing hairs on its legs instead of eyes.

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.