A detail description of each species, as well as control recommendations, can be found in SP341I, Carpet Beetles. Remove adult carpet beetles from flowers before they are brought into the residence. Destroy untreated worthless animal skins, valueless insect collections, old woolen rags, and old clothing. Periodically brush, air outside or dry-clean furs, woolens, blankets, etc. Locate the source of infestation and if possible, remove the source of infestation, place in sealable plastic bag and discard in an outdoor garbage pail.
Carpet beetle larvae prefer to feed in dark, protected places.
Cast skins, shed during molting, may be more abundant than larvae. Store susceptible clothing in a good storage container and add naphthalene flakes interspaced between sheets of paper that will not discolor the clothing. The shiny, dark egg masses were deposited on the twigs last July. Most of their life was spent in the egg stage so you can expect that they will be hungry. There is only one generation per year.