http://www.ars.usda.gov/is/br/lbeetle/Snip
Multicolored Asian lady beetle (Harmonia axyridis)—This insect has a wider range of colors and spot numbers than other lady beetle species. Wings range from black to mustard; spots number zero to many.
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 1916 in attempts to naturally control certain insect pests. But the first populations were not found in this country until 1988 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. But it was not detected in these places until some years after it had became established in Louisiana. In addition, accidental entries have occurred via imported nursery items at ports in Delaware and South Carolina. Thus, it is uncertain whether the beetle's establishment resulted from planned releases, accidental entries or both.
The multicolored Asian lady beetle is similar to other familiar lady beetles commonly found throughout the United States. Like the familiar lady beetles, the multicolored Asian lady beetle feeds on insect pests in orchards and forests but may also occur on row crops and in gardens.
Lady beetles have four distinct life stages: egg, larva, pupa and adult. The multicolored Asian lady beetle adults begin laying eggs on host plants in early spring. Eggs hatch in about three to five days, and larvae begin searching on plants for aphids and other soft-bodied arthropods on which to feed. Adults and larvae typically feed upon the same prey. Larvae molt four times, becoming larger after each molt, and enter an immobile pupal stage after the last molt.
After several days, the adult beetle emerges from the pupal case. Development time from egg to adult requires about 15-25 days depending on temperature and food availability. Later in the fall, near the time of killing frosts, the adult beetles seek shelter to spend the winter.
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