Cave Cixiid vs Giant Nicoletiid

Side-by-side species comparison

Attribute Cave Cixiid Giant Nicoletiid
Scientific Name Oliarus polyphemus Texoreddellia aquilonaris
Order Hemiptera Zygentoma
Family Cixiidae Nicoletiidae
Size 4-6 mm 15-25 mm
Habitat Caves Caves
Diet Sap Feeders Detritivores
Regions Hawaii, Big Island North America, Texas
Conservation Vulnerable Vulnerable

Cave Cixiid

A remarkable cave-adapted planthopper from Hawaiian lava tubes that has lost its eyes and wings. Its body is pale and depigmented, adapted to complete darkness.

💡

Did You Know?

This eyeless cave-dwelling planthopper was one of the first species used to study speciation in cave systems, with different populations in separate lava tubes diverging into distinct species.

Giant Nicoletiid

A cave-dwelling, blind silverfish relative found in Texas caves. It is completely unpigmented and white, with elongated appendages adapted to cave life.

💡

Did You Know?

Cave-adapted silverfish like this species represent some of the most ancient lineages of living insects still inhabiting their ancestral habitat type.