Species Insects & ArthropodsEuropean Ground Beetle

European Ground Beetle

Pterostichus melanarius

CommonInsect & Arthropod
Illustration of European Ground Beetle (Pterostichus melanarius)

The European Ground Beetle is a large, glossy black ground beetle introduced from Europe that is now one of the most abundant beetles in North American agricultural soils. Despite being an introduced species, it is generally considered beneficial because it voraciously consumes weed seeds and small pest insects. It is nocturnal and found under rocks, debris, and in dense vegetation.

Habitat
Agricultural fields, gardens, and disturbed soils
Diet
Adults and larvae: seeds, slugs, and small insects
How common
Common

Best time to see a European Ground Beetle

The best time to see a European Ground Beetle is July–October, when about 61% of U.S. sightings happen, based on 746 research-grade iNaturalist observations.

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