What is the typical wingspan range for an adult White-shouldered House Moth?
Answer
13 to 16 millimeters
The typical wingspan measurement for an adult specimen of *Endrosis sarcitrella* is consistently described within a specific, narrow range when measuring the distance between the tips of the forewings when fully outstretched. This range falls between 13 and 16 millimeters. This size is notable as it signifies a moderate size for a small indoor moth, being slightly larger than some minute pantry moth species it might be confused with, yet still compact enough to go unnoticed initially. This dimension is a primary characteristic used in field identification to quickly narrow down possibilities among small, drab moths frequenting domestic areas.

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