Rugose Christmas Beetle vs Bean Weevil

Side-by-side species comparison

Attribute Rugose Christmas Beetle Bean Weevil
Scientific Name Anoplognathus rugosus Acanthoscelides obtectus
Order Coleoptera Coleoptera
Family Scarabaeidae Chrysomelidae
Size 18-24 mm 2-4 mm
Habitat Woodlands Gardens
Diet Root Feeders Seed Feeders
Regions Australia Central America (native), cosmopolitan
Conservation Least Concern Least Concern

Rugose Christmas Beetle

A robust dark brown scarab with distinctly wrinkled elytra found in southeastern Australia. Adults are attracted to lights during warm summer evenings.

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Did You Know?

Their numbers have declined significantly in Sydney since the 1990s due to habitat loss.

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.