Varied carpet beetle(s) on Goutweed, Heesch, Netherlands

The varied carpet beetle is a 3 mm-long beetle belonging to the family Dermestidae. They are a common species, often considered a pest of domestic houses and, particularly, natural history museums, where the larvae may damage natural fibers and can damage carpets, furniture, clothing, and insect collections. "A. verbasci" was also the first insect to be shown to have an annual behavioral rhythm and to date remains a classic example of circannual cycles in animals.