Spotted Willow Leaf Beetle vs Spotted Tumbling Flower Beetle

Side-by-side species comparison

Attribute Spotted Willow Leaf Beetle Spotted Tumbling Flower Beetle
Scientific Name Chrysomela knabi Mordellistena pumila
Order Coleoptera Coleoptera
Family Chrysomelidae Mordellidae
Size 6-8 mm 2-3.5 mm
Habitat Mountains Farmland
Diet Herbivores Pollen Feeders
Regions Western North America Europe
Conservation Least Concern Least Concern

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.

Spotted Tumbling Flower Beetle

A tiny tumbling flower beetle found on composite flowers in summer. Larvae develop in plant stems. One of the smallest and most frequently encountered mordellid species.

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Did You Know?

So small that it can hide inside individual florets of composite flower heads.