Kauai Flightless Stag Beetle vs Giant Brazilian Longhorn

Side-by-side species comparison

Attribute Kauai Flightless Stag Beetle Giant Brazilian Longhorn
Scientific Name Apterocyclus honoluluensis Derobrachus geminatus
Order Coleoptera Coleoptera
Family Lucanidae Cerambycidae
Size 1.5-3 cm 60-90 mm
Habitat Mountains Forests
Diet Herbivores Root Feeders
Regions United States South America (Brazil, Paraguay, Argentina)
Conservation Endangered Least Concern

Kauai Flightless Stag Beetle

A flightless stag beetle endemic to the island of Kauai in Hawaii. Larvae develop in rotting logs of native trees.

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Did You Know?

It is the only stag beetle in Hawaii and has completely lost its ability to fly.

Giant Brazilian Longhorn

A very large longhorn beetle with powerful mandibles and long, segmented antennae. The body is dark brown to black with a rough, sculptured texture. Adults are nocturnal and attracted to lights. Larvae bore into the roots of large trees.

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Did You Know?

Its larvae can spend up to five years developing inside tree roots before emerging as adults that live only a few weeks.