Four Beetles in Bathroom: Carpet Beetle Species, Check Stored Foods

The beetles in your bathroom—likely black carpet beetles (Attagenus unicolor) or a related Dermestid—are common household scavengers.

Why the Bathroom?

• Attracted to lights at night.
• May have wandered from a food source elsewhere (bedroom closets, pantry, pet food).
• Bathrooms often have accumulated hair, dead insects, lint—food for larvae.

Action

1. Inspect nearby closets, bedrooms, pantry for larvae (hairy, carrot-shaped) or damaged woolens/food.
2. Vacuum bathroom thoroughly (cracks, corners, under cabinets).
3. Check dry pet food first—#1 source.
4. Store vulnerable items sealed.

See livingwithbugs.com/carpet_beetle.html. A few adults = sanitation check, not infestation panic.