Larder beetles

Identification

Size: Adult larder beetles typically measure 0.25 to 0.37 inches (6 to 9 millimeters) in length. Larvae are usually longer and covered in bristly hairs.

Color: Adult larder beetles are dark brown with a pale yellow band that runs across the upper portion of their wing covers. The band often has six darker spots. Larvae are reddish brown with stiff hairs and a curved body.

Description: Larder beetles are common pantry and stored product pests. They are often found in homes, restaurants, and food storage areas. Adults and larvae feed on a wide range of materials that contain protein, fat, or animal products. These pests can contaminate food, damage stored goods, and create small holes in packaging or structural materials.

Larder beetles are drawn to foods that contain animal based ingredients. This includes dried meats, pet food, cheese, stored grains, and other high protein products. They can also infest areas where rodents or insects have died, as the beetle larvae feed on carcasses and leftover organic material.

Inside homes, larder beetles often enter through cracks or gaps and then locate food sources in kitchens, pantries, attics, basements, and garages. Larvae can burrow into wood, insulation, or packaging as they search for a safe place to pupate. This can result in additional structural damage beyond food contamination.

Larder beetles are capable of reproducing quickly once they have access to a suitable food supply. An infestation may go unnoticed at first, with activity becoming obvious once adults are seen around windows, shelves, or food storage areas. Removing food sources and locating hidden larvae are key steps in long term control.

Adult beetles are dark brown with a yellow band across the wings
Six dark spots often appear on the yellow band
Larvae are long, hairy, and reddish brown with curved bodies
Adults may be found near windows as they move toward light
Activity often occurs in pantries, kitchens, garages, or pet feeding areas
Small holes in packaging or wood may indicate larval burrowing

Adult beetles found near food storage areas or around windows
Damaged or contaminated food items
Shed larval skins or droppings near stored products
Small holes in wood, insulation, or packaging caused by larvae
Unpleasant odors in areas where organic material or dead insects are present
Increased beetle activity around pet food containers or feed bags

Keep food tightly sealed in durable containers
Store pet food in sealed bins and clean feeding areas regularly
Remove old or unused food items that may attract beetles
Clean shelves and storage spaces to remove crumbs or spills
Seal cracks and gaps that allow beetles to enter
Maintain proper sanitation in garages, basements, and attics
Use professional pest control services if activity continues or if larvae are difficult to locate