Larger Grain Borer vs Rugose Christmas Beetle

Side-by-side species comparison

Attribute Larger Grain Borer Rugose Christmas Beetle
Scientific Name Prostephanus truncatus Anoplognathus rugosus
Order Coleoptera Coleoptera
Family Bostrichidae Scarabaeidae
Size 3-4.5 mm 18-24 mm
Habitat Gardens Woodlands
Diet Omnivores Root Feeders
Regions Africa, Central America Australia
Conservation Not Evaluated Least Concern

Larger Grain Borer

A devastating pest of stored maize and dried cassava in Africa. It can cause grain weight losses exceeding 30% in untreated stores.

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Did You Know?

A predatory beetle, Teretrius nigrescens, was introduced to Africa as a biological control agent against it.

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.