Mammoth Cave Beetle vs Giant Amazonian Ground Beetle

Side-by-side species comparison

Attribute Mammoth Cave Beetle Giant Amazonian Ground Beetle
Scientific Name Xenotrechus condei Calosoma alternans
Order Coleoptera Coleoptera
Family Carabidae Carabidae
Size 5-7 mm 22-30 mm
Habitat Caves Farmland
Diet Omnivores Predators
Regions United States Central America, 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.

Giant Amazonian Ground Beetle

A large Neotropical caterpillar hunter with dark elytra bearing rows of metallic pits. It is an important natural enemy of agricultural pest caterpillars in Central and South America.

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Did You Know?

It is frequently attracted to lights at night and has been studied as a biological control agent for fall armyworm, a devastating pest of maize across the Americas.