Bug Identifier
Asian Lady Beetle
Community identification

Asian Lady Beetle

Harmonia axyridis

Order & Family
Order: Coleoptera; Family: Coccinellidae
Size
5.5 mm to 8.5 mm long
See this bug in the Encyclopedia

Natural Habitat

Found in forests, fields, gardens, and increasingly common in urban habitats and residential homes during colder months.

Diet & Feeding

Primarily predatory, feeding on aphids, scale insects, and other soft-bodied crop pests; occasionally feeds on ripening fruit.

Behavior Patterns

Active during the day; notable for congregating in large numbers on sunny, south-facing walls in autumn to seek warmth and overwinter indoors.

Risks & Benefits

Benefits the ecosystem by controlling agricultural pests; however, they can be a nuisance when infesting homes, may bite if handled, and can cause allergic reactions or leave yellow-staining chemical secretions (reflex bleeding) when threatened.