I think what you got here is an Asian Lady Beetle. Some parts of America are experiencing an epidemic the past few years. Between the late 1910’s and the mid-1970's, there were several planned and accidental introductions to the U.S., with no survival. Many planned releases across the eastern U.S. in the late 1970's and early 1980's were attempts to use the beetles to help control aphids and scales. After years without a sighting, the beetle was seen in Louisiana in 1988. Whether this final, successful colonization was due to a planned release or an accidental introduction is under debate.
Invasion Biology Introduced Species Summary Project - Columbia University