Ground beetle (likely a black ground beetle)

Found on or under soil, leaf litter, stones, wood, and occasionally indoors at ground level. Many species prefer damp, sheltered habitats.

Mostly predatory, eating caterpillars, beetle larvae, aphids, slugs, snails, and other small invertebrates; some also consume seeds or plant matter.

Usually nocturnal and fast-running, hiding by day beneath debris. Adults commonly overwinter in soil or sheltered crevices; many species do not fly readily despite having wings.

Generally harmless to people, pets, buildings, and stored food, though some can release irritating defensive chemicals if handled. They are beneficial garden predators that help suppress many pest species.