Harmonia quadripunctata, commonly known as the Asian lady beetle or the harlequin ladybird, is a small insect belonging to the family Coccinellidae. It is native to Asia but has been introduced to many parts of the world as a biological control agent for aphids. This ladybird species is highly variable in coloration, ranging from orange to red, with black spots on its elytra. It is known for its voracious appetite for aphids and other soft-bodied insects, making it a beneficial predator in agricultural and garden ecosystems.