Where has the black carpet beetle larva commonly been found?

The black carpet beetle larva has commonly been found in granaries due to their association with stored products. These larvae are known to feed on a variety of materials, including natural fibers, dried plant materials, and sometimes even pet food. Granaries, where grains and other stored products are kept, provide an ideal environment for these pests to thrive, as there is a plentiful supply of organic materials for them to feed on.

In contrast, other environments like living rooms, gardens, and attics may not present as suitable a habitat or food source for black carpet beetle larvae. While they can occasionally be found in a home, particularly if natural fibers or organic materials are present, their primary habitat remains in settings where food sources are concentrated, such as granaries. This explains why the granary is highlighted as the common location for the presence of black carpet beetle larvae.