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Drugstore Beetles

Identification, Habits, and Control
Closeup photo of a Drugstore Beetle

About Drugstore Beetles

Species: Stegobium paniceum

Drugstore beetles are small pantry pests that infest a wide variety of stored products, including dry foods, spices, pet food, and even non-food items like paper and packaging. They are commonly found in both residential kitchens and commercial storage environments.

Because of their ability to spread quickly and infest multiple products, they can become a persistent issue if not properly managed.

How to Identify Drugstore Beetles

Size

  • Approximately 1/8 inch long
  • Small and oval-shaped

Color

  • Reddish-brown
  • Uniform in color

Identifying Characteristics

  • Oval, humpbacked body
  • Head tucked downward and not easily visible from above
  • Strong ability to chew through packaging materials
  • Often found near infested products

Where You’ll Find Them

  • Pantries and kitchen cabinets
  • Stored grains, cereals, spices, and dry goods
  • Packaged foods, including unopened products
  • Storage areas and commercial food facilities

Behavior and Risks

Drugstore beetles infest stored products by laying eggs directly in or near food sources. Once larvae hatch, they feed within the product, often remaining hidden until the infestation becomes widespread. Homeowners may notice small beetles near pantry shelves, tiny holes in packaging, or infested products containing larvae or powdery residue. Because these beetles can chew through cardboard, paper, and thin plastic, they are able to spread quickly between stored items.

Infestations often originate from a single contaminated product and can expand throughout a pantry or storage area if not addressed. In both residential and commercial settings, this can lead to significant food waste and contamination. Effective control requires identifying and removing the source product, thoroughly cleaning storage areas, and preventing reintroduction through proper storage practices.