Which materials, rich in protein, are primary natural fibers consumed by the larva of *Endrosis sarcitrella*?
Answer
Wool and silk
The larval stage of the White-shouldered House Moth exhibits a strong preference for textiles derived from animal products. Specifically, wool and silk are highlighted as primary food sources because they are rich in protein, a necessary component for the larva's growth and development into the pupa and adult stages. This preference is shared with other textile pests, and these materials provide readily digestible organic compounds, including keratin.

Related Questions
What is the documented sustenance for the adult stage of the White-shouldered House Moth?Which materials, rich in protein, are primary natural fibers consumed by the larva of *Endrosis sarcitrella*?Besides textiles, which specific stored commodities are recorded as larval food sources for *Endrosis sarcitrella*?What ubiquitous environmental detritus allows *Endrosis sarcitrella* larvae to subsist in dark, neglected areas?What key nutritional element do larvae derive from consuming natural fibers like wool and silk?How are the mouthparts of the adult White-shouldered House Moth adapted in contrast to the larvae?In terms of damage, how are the adult moths categorized compared to their larval stage?What does finding *Endrosis sarcitrella* exclusively in dusty reaches far from stored food or clothing imply about their diet?What is required for successful eradication of *Endrosis sarcitrella* based on its varied larval diet?What characteristic enables *Endrosis sarcitrella* to maintain its status as a common household insect worldwide?