Thanks so much - now to get rid of them!

Do not employ an extermination service, or use chemicals. They are surprisingly immune to things like mothballs and moth crystals for example. Find the infested item(s) and discard them. Since the larvae feed on dried animal products, check the pet food, cured meats, taxidermy mounts, insect collection (you mean you don't have one?:-), wool garments and blankets, furs, and silks, etc. Store all vulnerable foodstuffs, including pet food, in glass or metal containers with tight-fitting lids. Store woolens, furs, and silks in a cedar chest, as cedar has proven repellent qualities. If you can't bear to part with an item, put it through a freezing and thawing cycle of about two weeks each, over about a month, to ensure no eggs will still be viable. Good luck, you have my sympathy!

Eric Eaton
author, "Kaufman Field Guide to Insects of North America"

Glad to see my little project is coming in handy!

Seems like a good way to ID one bug, but then maybe people see some others and say "Oh, I've seen that too."

BTW, while were talking Carpet Beetles, do you think we should add Attagenus (just the larva) to the list? They are pretty common in houses too, and they look pretty different from Anthrenus.

Done.