Bug Identifier
Black Ground Beetle (Harpaline Ground Beetle)
Community identification

Black Ground Beetle (Harpaline Ground Beetle)

Harpalus pensylvanicus

Order & Family
Coleoptera: Carabidae
Size
13 to 16 mm (approximately 0.5 to 0.6 inches)
See this bug in the Encyclopedia

Natural Habitat

Found in gardens, meadows, open fields, and under debris or stones in urban and rural areas.

Diet & Feeding

Omnivorous; feeds on various seeds (like ragweed) and small invertebrates including caterpillars, slugs, and aphids.

Behavior Patterns

Primarily nocturnal and spends the day hiding in dark, moist places. They are fast runners and are often attracted to porch lights at night.

Risks & Benefits

Generally beneficial to the ecosystem as they control pest populations and consume weed seeds. They are harmless to humans, though they may produce a foul odor if handled.