Bean Weevil vs Corsican Stag Beetle

Side-by-side species comparison

Attribute Bean Weevil Corsican Stag Beetle
Scientific Name Acanthoscelides obtectus Lucanus tetraodon
Order Coleoptera Coleoptera
Family Chrysomelidae Lucanidae
Size 2-4 mm 30-50 mm
Habitat Gardens Woodlands
Diet Seed Feeders Wood Feeders
Regions Central America (native), cosmopolitan Corsica, Sardinia, Italy
Conservation Least Concern Near Threatened

Bean Weevil

A small, mottled grayish-brown beetle with a compact, somewhat wedge-shaped body. It is a major stored-product pest that develops inside dried beans and other legume seeds.

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Did You Know?

Multiple larvae can develop inside a single bean, and adults can fly directly to bean fields to infest crops before harvest.

Corsican Stag Beetle

A large stag beetle found in Corsica, Sardinia, and parts of Italy. Males have impressive mandibles with four teeth used in combat.

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Did You Know?

Males use their four-pronged mandibles to flip rivals off tree branches during territorial fights.