Varied carpet beetle larvae are characterized by which feature?

The varied carpet beetle larvae are distinctively broader at the rear than at the front. This tapered body shape is an important identifying characteristic of these larvae. The broader rear provides them with a specific silhouette that can be recognized when identifying these pests. Understanding their shape is crucial for pest control professionals, as it aids in accurately identifying infestations and implementing effective control measures.

In the context of the other options, while some insects may have varying shapes that could be similar, carpet beetle larvae's unique shape is clearly defined as broader at the rear. The other choices do not accurately reflect the typical morphology of varied carpet beetle larvae, which is essential to differentiate them from other larvae that may be present in similar environments.