Bean Weevil vs Malaysian Firefly

Side-by-side species comparison

Attribute Bean Weevil Malaysian Firefly
Scientific Name Acanthoscelides obtectus Pteroptyx valida
Order Coleoptera Coleoptera
Family Chrysomelidae Lampyridae
Size 2-4 mm 5-8 mm
Habitat Gardens Rivers & Streams
Diet Seed Feeders Predators
Regions Central America (native), cosmopolitan Southeast Asia
Conservation Least Concern Vulnerable

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.

Malaysian Firefly

A synchronous firefly of Malaysian rivers that creates spectacular congregation displays. It is a key species for firefly ecotourism in Selangor.

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Did You Know?

The Selangor firefly colony along the Selangor River is one of the largest known congregations, stretching for several kilometers.