Two-lined Chestnut Borer Leaf Beetle vs Narrow-bordered Bombardier

Side-by-side species comparison

Attribute Two-lined Chestnut Borer Leaf Beetle Narrow-bordered Bombardier
Scientific Name Chrysomela mainensis Brachinus sclopeta
Order Coleoptera Coleoptera
Family Chrysomelidae Carabidae
Size 6-8 mm 6-9 mm
Habitat Forests Rivers & Streams
Diet Herbivores Omnivores
Regions Northern North America Mediterranean Europe, North Africa
Conservation Least Concern Least Concern

Two-lined Chestnut Borer Leaf Beetle

A convex beetle with metallic dark greenish-black elytra and fine punctation. It is found on alder and willow in boreal forests across northern North America.

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Did You Know?

This boreal species has adapted to the short growing season of northern latitudes, completing its entire life cycle during the brief summer months.

Narrow-bordered Bombardier

A Mediterranean bombardier beetle with a narrow body and orange-brown coloring. It shelters communally under stones in dry habitats.

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Did You Know?

Groups of up to 100 individuals have been found sheltering together under a single stone.