Adult multicolored Asian lady beetles also called ladybugs or ladybird beetles are dome shaped convex on top, flat on the bottom, and rounded when viewed from above. There are more than forms with different spot markings and coloration. Common in California are yellowish orange to red individuals with no spots or 18 or 19 black spots of variable size on the wing covers. Deep orange with prominent spots is the most common form in California.
Asian Lady Beetle
Asian Lady Beetle Facts, Habitat, Diet, Life Cycle, Baby, Pictures
Official websites use. Share sensitive information only on official, secure websites. The multicolored Asian lady beetle Harmonia axyridis is native to Asia but occurs in many areas of the United States. This beneficial insect was imported and released as early as in attempts to naturally control certain insect pests. But the first populations were not found in this country until in Louisiana near the busy port of New Orleans. Over the years, federal, state and private entomologists released the insect at a number of locations.
Asian Lady Beetle Infestation of Structures
Multicolored Asian lady beetle showing color variations. Where to find it while inspecting: When gathering in fall, they will be found in large numbers on the sunny side of buildings and trees. Any available access to protected habitat may encourage large numbers to enter for overwintering. Look for gaps and holes in structure, most notably around eaves, windows and foundations again, often on the south side of the building.
Large numbers of lady beetles ladybugs infesting homes and buildings in the United States were first reported in the early s. Ladybugs normally are considered beneficial since they live outdoors and feed on plant pests. One species of lady beetle, Harmonia axyridis , can be a nuisance however, when they fly to buildings in search of overwintering sites and end up indoors.