Question

Help! What's this?   What bug is this? I found 4 in the bathroom tonight.

Answer
LHNY13,

This is one of the carpet beetle species, possibly the black carpet beetle. See http://www.livingwithbugs.com/carpet_beetle.html for info about a closely related species. These beetles are often associated with stored food such as cereals or dry pet food. Spilled food can also be a source of the infestation.

Jack DeAngelis