Splendid Ground Beetle vs American Grannom

Side-by-side species comparison

Attribute Splendid Ground Beetle American Grannom
Scientific Name Carabus splendens Brachycentrus americanus
Order Coleoptera Trichoptera
Family Carabidae Brachycentridae
Size 22-32 mm 9-13 mm
Habitat Mountains Rivers & Streams
Diet Omnivores Omnivores
Regions Pyrenees (France and Spain) North America
Conservation Near Threatened Least Concern

Splendid Ground Beetle

A dazzling green and gold ground beetle endemic to the Pyrenees mountains. It is prized by collectors for its brilliant metallic sheen.

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Did You Know?

Its range is restricted to a narrow band of the Pyrenees, making it one of Europe's most localised Carabus species.

American Grannom

A case-building caddisfly whose larvae attach their cases to rocks in fast current and filter-feed. Cases are chimney-shaped and built from silk and plant fragments.

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Did You Know?

Larvae can switch between filter-feeding and scraping algae depending on current speed.