Dermestes lardarius, commonly known as the larder beetle, is a small insect found worldwide. It thrives in dark, warm environments and is often associated with stored food products. The beetle is easily identified by its dark, oval-shaped body and a distinctive yellow band across its elytra. Larder beetles play a role in the decomposition process, breaking down animal products and organic matter.

Dermestes lardarius, commonly known as the larder beetle, is native to the Palearctic region. This includes Europe, North Africa, and parts of Asia. However, it has spread to other parts of the world and can now be found in North America, Australia, and other regions due to human activity.

The larder beetle typically inhabits environments where it can find stored products and animal materials. It thrives in temperate climates but can adapt to a wide range of conditions due to its ability to live indoors. It is often found in households, warehouses, and food storage facilities where it can access dried meats, cheeses, and other animal-derived materials.

Dermestes lardarius plays a role in the decomposition and recycling of animal materials. In natural settings, it helps break down animal carcasses, while in human environments, it acts as a pest by feeding on stored animal products. Its ecological niche involves scavenging and decomposing organic matter, contributing to nutrient cycling in ecosystems.