Which two groups of insects feed on stored woolens?

The correct answer is the combination of clothes moths and carpet beetles because both of these insect groups are known to specifically feed on natural fibers, including wool. Clothes moths, particularly the larvae, are notorious for damaging woolen garments and textiles. They are drawn to the keratin found in animal fibers, making wool, silk, and other natural fabrics their preferred food sources.

Carpet beetles, particularly their larvae, also contribute to damage in stored woolens. These larvae feed on a variety of organic materials found in clothing, carpets, and other household items, with a strong preference for animal-derived fabrics like wool. Their feeding habits can lead to significant destruction in infested items.

Other options do not include members that primarily target stored woolens. Termites and ants, for instance, typically focus on wood or plant-based materials rather than textiles. Similarly, fleas and ticks are external parasites that do not feed on textiles at all, as they primarily consume the blood of mammals. Thus, the pairing of clothes moths and carpet beetles accurately identifies the two groups that are particularly harmful to stored woolens.