Bug Identifier
Black Garden Ant
Community identification

Black Garden Ant

Lasius niger

Order & Family
Hymenoptera: Formicidae
Size
Workers are 3–5 mm in length; Queens up to 9 mm.
See this bug in the Encyclopedia

Natural Habitat

Nesting in soil, under stones, or in pavement cracks; often found in suburban gardens and inside homes scavenging for food.

Diet & Feeding

Omnivorous; feeds on insects, nectar, and the sugary secretions of aphids (honeydew). Attracted to sweet substances in human dwellings.

Behavior Patterns

Highly social insects forming large colonies; they lay pheromone trails to guide nestmates to food sources and are active primarily from spring through autumn.

Risks & Benefits

Generally harmless to humans but considered a nuisance pest in homes. Benefit ecosystems by performing soil aeration and predating on other small insect pests.