Harmonia axyridis, most commonly known as the harlequin, multicolored Asian, or simply Asian ladybeetle, is a large coccinellid beetle. This is one of the most variable species in the world, with an exceptionally wide range of color forms. It is native to eastern Asia, but has been artificially introduced to North America and Europe to control aphids and scale insects.
They are called ladybugs in the U.S. and ladybirds in the U.K.. Despite working wonders to clear pests from the garden, however, the exotic Asian Multicolored Lady Beetle has become somewhat of a pest itself. This species of Lady Beetle is actually native to China, Japan and eastern Russia.
The Multicolored Asian Lady Beetle (Harmonia Axyridis) now makes its home in the United States.A native of Asia, this beneficial ladybug was imported in the early 's to help naturally control pest populations that were damaging such crops as alfalfa, pecan and citrus trees.
The multicolored Asian lady beetle (MALB), an introduced species, has many color forms and patterns. Most people know a lady beetle (a.k.a. "ladybug") when they see one, so the trick is to learn how to tell this species from our many native lady beetles.