Which type of moth larva is known for feeding on soiled material and spinning silken mats over it?

The webbing clothes moth larva is particularly recognized for its behavior of feeding on soiled materials, which may include organic substances such as wool, silk, and other natural fibers that have been contaminated with body oils, food stains, or other organic debris. This larval stage also spins silken mats over the material it feeds on, which serves to provide protection and a nurturing environment for the larva as it develops.

The presence of these silken mats can often be a telltale sign of their activity in an area, as they can cover clothing items, carpets, and other fabrics. This feeding behavior is significant because it highlights the pest’s ability to thrive in areas with neglect regarding cleanliness, as they are drawn to fabrics that have accumulated dirt or organic matter.

In contrast, other types of moth larvae, such as case making clothes moths, construct cases from fibers and debris and may not specifically spin mats, while carpet moth larvae have different feeding habits and preferred materials. The unique characteristics of the webbing clothes moth larvae set them apart in terms of their impact on fabric and the types of conditions they thrive in.