Jeena,
I'm in Poland right now, preparing my parents summer house for the winter and about two hours ago it started, a ladybug invasion. There are thousands and thousands of them. My cousins cousin also has a white house and the same problem today. Apparently they like the warmth of the white house when the sun is shining on it. But they also try to get in into the house, so I had to plug the holes by the windows.