Mammoth Cave Beetle vs Harlequin Cockroach

Side-by-side species comparison

Attribute Mammoth Cave Beetle Harlequin Cockroach
Scientific Name Xenotrechus condei Neostylopyga rhombifolia
Order Coleoptera Blattodea
Family Carabidae Blattidae
Size 5-7 mm 25-30 mm
Habitat Caves Underground
Diet Omnivores Omnivores
Regions United States Southeast Asia, Hawaii, Mexico
Conservation Endangered Least Concern

Mammoth Cave Beetle

A rare troglobitic ground beetle known from caves in the Ozark region of Missouri. It is eyeless with greatly elongated appendages.

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Did You Know?

It was not discovered until 1987, despite extensive surveys of Missouri caves.

Harlequin Cockroach

A strikingly patterned cockroach with dark brown and yellow markings on its body. It is a peridomestic species found in tropical Asia and has spread to warm urban areas.

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Did You Know?

Its bold geometric color pattern makes it one of the most visually distinctive household cockroach species.