Asian Lady Beetle

Scientific Name: Harmonia axyridis

Order & Family: Order Coleoptera, Family Coccinellidae

Size: 5.5 to 8.5 mm in length

Asian Lady Beetle

Natural Habitat

Found in various outdoor habitats including gardens, agricultural fields, and forests; frequently invades homes and buildings during the autumn winter.

Diet & Feeding

Mainly feeds on aphids and other soft-bodied insects like scales and adelgids; adults may also consume pollen and nectar.

Behavior Patterns

Active predators during spring and summer; they are known for their 'overwintering' behavior where thousands of individuals aggregate in light-colored buildings to survive the cold.

Risks & Benefits

Benefits the ecosystem and agriculture by controlling aphid populations; potential risks include being a household nuisance insect, causing minor allergic reactions in some people, and producing a foul-smelling yellow fluid (reflex bleeding) that can stain surfaces.

Identified on: 2/15/2026