My house is invaded by ladybugs.  Here’s what I learned from Wikipedia:

“they use pheromones as a means of communication during mating and hibernation.  So powerful are these  can be detected by others up to a 1/4 mile away. This helps ladybugs find each other and it lets future generations know of a good place to “camp out” for the winter. The pheromones don’t go away easily. The chemical “scent” can remain year after year, and not only on the outside of a structure, but also within the walls, where ladybugs tend to hide before emerging into your home. So, scrubbing pheromones off a house is a BIG task, if not impossible.”

Apparently, you can’t shake ’em.

Artist Kyle Bean certainly leads a bug’s life.