Black Ground Beetle

Scientific Name: Harpalus pennsylvanicus

Order & Family: Coleoptera: Carabidae

Size: 10 to 15 mm (approx. 0.5 inches)

Black Ground Beetle

Natural Habitat

Under stones, leaf litter, fields, and occasionally entering homes during transitions in weather

Diet & Feeding

Omnivorous, feeding on other insects, larvae, and various weed seeds

Behavior Patterns

Nocturnal hunters that are attracted to lights at night; they are fast runners and mostly move along the ground

Risks & Benefits

Beneficial to ecosystems as they control pest insect populations and consume weed seeds; they are harmless to humans and do not infest food or property

Identified on: 12/27/2025