Fir Longhorn vs Spotted Willow Leaf Beetle

Side-by-side species comparison

Attribute Fir Longhorn Spotted Willow Leaf Beetle
Scientific Name Tetropium gabrieli Chrysomela knabi
Order Coleoptera Coleoptera
Family Cerambycidae Chrysomelidae
Size 9-15 mm 6-8 mm
Habitat Mountains Mountains
Diet Wood Feeders Herbivores
Regions Central and Southern Europe (Alps, Carpathians, Balkans) Western North America
Conservation Least Concern Least Concern

Fir Longhorn

A small brown spondylidine beetle that specializes on fir trees across European mountain ranges. It is similar to T. castaneum but is restricted to Abies. Larvae develop under bark of weakened or dead silver fir.

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Did You Know?

This species is considered an indicator of healthy montane fir forest ecosystems.

Spotted Willow Leaf Beetle

A dark metallic blue-black beetle with an oval body found on willows in western North America. Adults and larvae feed on willow foliage near mountain streams.

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Did You Know?

This species is adapted to high-altitude habitats and is commonly found above 2,000 meters elevation in the Rocky Mountains.