Douglas-fir Beetle vs Madagascan Pill Millipede

Side-by-side species comparison

Attribute Douglas-fir Beetle Madagascan Pill Millipede
Scientific Name Dendroctonus pseudotsugae Zoosphaerium neptunus
Order Coleoptera Sphaerotheriida
Family Curculionidae Arthrosphaeridae
Size 4-6 mm 40-60 mm when curled
Habitat Mountains Forests
Diet Wood Feeders Wood Feeders
Regions Western North America from British Columbia to Mexico Madagascar
Conservation Least Concern Not Evaluated

Douglas-fir Beetle

A dark reddish-brown bark beetle that attacks Douglas-fir trees, particularly those weakened by drought or windthrow. It is among the most damaging bark beetles in the Pacific Northwest.

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Did You Know?

It preferentially attacks fallen or stressed trees, but during outbreaks it can kill large numbers of healthy standing trees.

Madagascan Pill Millipede

A giant pill millipede endemic to Madagascar that can roll into a perfect ball. It is one of the largest pill millipedes in the world.

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Did You Know?

Males produce sounds by stridulation to attract females during courtship.