Mammoth Cave Beetle vs Yellow-banded Eucalyptus Longhorn

Side-by-side species comparison

Attribute Mammoth Cave Beetle Yellow-banded Eucalyptus Longhorn
Scientific Name Xenotrechus condei Phoracantha recurva
Order Coleoptera Coleoptera
Family Carabidae Cerambycidae
Size 5-7 mm 14-28 mm
Habitat Caves Farmland
Diet Omnivores Wood Feeders
Regions United States Australia; invasive in California, Mediterranean, South America
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.

Yellow-banded Eucalyptus Longhorn

An Australian cerambycid similar to P. semipunctata but with more pronounced yellowish bands and recurved elytral apices. It has also become invasive worldwide in eucalyptus plantations and often outcompetes its congener.

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Did You Know?

Where both Phoracantha species co-occur, P. recurva often displaces P. semipunctata through larval competition.