Black Garden Ant

Scientific Name: Lasius niger

Order & Family: Order: Hymenoptera, Family: Formicidae

Size: Workers are typically 3mm to 5mm in length.

Black Garden Ant

Natural Habitat

Found in gardens, under paving stones, in soil, and occasionally inside buildings.

Diet & Feeding

Omnivorous; they feed on nectar, seeds, and small insects, and famously tend aphids for honeydew.

Behavior Patterns

Highly social insects that live in complex colonies; they are most active during the day and exhibit swarming behavior during nuptial flights in summer.

Risks & Benefits

Generally harmless to humans though they can be minor pests in homes; they benefit the ecosystem by aerating soil and controlling smaller insect populations.

Identified on: 6/17/2026