Hawaiian Cave Spider vs Hawaiian Happy-face Spider

Side-by-side species comparison

Attribute Hawaiian Cave Spider Hawaiian Happy-face Spider
Scientific Name Adelocosa anops Theridion grallator
Order Araneae Araneae
Family Lycosidae Theridiidae
Size 15-20 mm body length 5 mm body length
Habitat Caves Forests
Diet Omnivores Omnivores
Regions Hawaii Hawaii
Conservation Endangered Endangered

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.

Hawaiian Happy-face Spider

A tiny Hawaiian spider with markings on its abdomen that resemble a smiling face. It is endemic to the rainforests of four Hawaiian islands.

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Did You Know?

The smiley-face pattern is thought to confuse predators by disrupting recognition of the spider shape.