After failed attempts to establish them over a period of 70 years,
they suddenly and unexepectely appeared on the east coast. In the 90s they rapidly spread
across much of the USA, colonizing many of the same places where attempts to establish them had failed!
They crowded out native species and in some places they are the only ladybugs to be found. It is
feared that this could lead to the extinction of some species. They aren't well adapted to the
cold, so they seek warm, protected places to overwinter. Finding such a place, they send out pherenomes
which attract others, thus some midwesterners have awoke to the sight of thousands of
Multicolored Asian Lady Beetles in their
houses. When disturbed they exude a
yellow liquid which causes stains and has an unpleasant lingering odor. Though the orange, 19 spotted
variety shown here is quite common, there are other varieties sporting different colors and numbers of
spots. Despite their diverse apppearance,
Multicolored Asian Lady Bugs are all the same species so if you see an orange 19 spotted ladybug mating with a yellow 2
spotted partner you can't assume that their efforts are being wasted!