Cave Cixiid vs Cave Cockroach

Side-by-side species comparison

Attribute Cave Cixiid Cave Cockroach
Scientific Name Oliarus polyphemus Nocticola australiensis
Order Hemiptera Blattodea
Family Cixiidae Nocticolidae
Size 4-6 mm 4-8 mm
Habitat Caves Caves
Diet Sap Feeders Detritivores
Regions Hawaii, Big Island Oceania
Conservation Vulnerable Data Deficient

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.

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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.

Cave Cockroach

A tiny eyeless cockroach adapted to permanent darkness in limestone caves.

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Did You Know?

It is completely depigmented and has elongated antennae for navigating in darkness.