Asian Lady Beetle (or Multicolored Asian Lady Beetle)

Scientific Name: Harmonia axyridis

Order & Family: Order: Coleoptera; Family: Coccinellidae

Size: 5.5–8.5 mm (approximately 0.2 to 0.3 inches)

Asian Lady Beetle (or Multicolored Asian Lady Beetle)

Natural Habitat

Found in gardens, orchards, agricultural fields, and frequently inside homes during cold weather.

Diet & Feeding

Mainly aphids and other soft-bodied insects like scale insects and psyllids.

Behavior Patterns

Active during the day; notable for their tendency to congregate in large numbers on buildings and enter homes for overwintering. They exhibit incomplete metamorphosis: egg, larva, pupa, and adult.

Risks & Benefits

Benefits: Highly effective natural pest control in gardens and farms. Risks: Can become a nuisance pest indoors; may bite and can release a yellowish, foul-smelling fluid (reflex bleeding) that stains surfaces and can cause allergic reactions in some people.

Identified on: 2/4/2026