Why do so many multi-colored Asian lady beetles show up in and on my house in the fall and sometimes — lasting right into spring?
In the fall of the year, multi-colored Asian lady beetles begin to seek out cavities where they will spend the winter hibernating. They require cavities that will stay cool and dry and offer concealment. Throughout their native range in Asia, the adult beetles seek out cavities in cliff faces and other naturally occurring cool, dry cavities. In our part of the world, they have found equivalent winter quarters in the exterior of buildings. They are most commonly found gathering in the fall on the sun-facing exposure of the building –usually a southern exposure. This activity often results in the beetles getting into the inhabited portions of the building. In the spring, they will all leave.