Flattened flour beetle (likely)

Stored grains, flour, cereals, seeds, and other dry food products; often occurs in mills, pantries, and grain-storage facilities.

Adults and larvae feed on processed grains, grain dust, and fungal material, contaminating stored food rather than biting people.

Small, flattened, fast-moving beetles that hide in cracks and food packaging; populations increase in warm, humid storage conditions. They undergo complete metamorphosis from egg to larva, pupa, and adult.

Not dangerous to humans, but can infest and contaminate dry foods and support mold growth. They have little notable ecological benefit indoors, though related species participate in decomposition outdoors.