Cave Cixiid vs Negro Bug

Side-by-side species comparison

Attribute Cave Cixiid Negro Bug
Scientific Name Oliarus polyphemus Thyreocoris scarabaeoides
Order Hemiptera Hemiptera
Family Cixiidae Thyreocoridae
Size 4-6 mm 3-4mm
Habitat Caves Underground
Diet Sap Feeders Fruit Feeders
Regions Hawaii, Big Island Europe
Conservation Vulnerable Least Concern

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.

Negro Bug

A tiny shiny black hemispherical bug that looks like a miniature beetle. It feeds on violets and strawberries.

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Did You Know?

So strongly resembles a tiny beetle that it is frequently misidentified and overlooked by bug enthusiasts.