Which feature differentiates casemaking moths from webbing clothes moths?

Casemaking moths can be differentiated from webbing clothes moths by the presence of three dark spots on their forewings. This specific feature is characteristic of casemaking moths, giving them a visual distinction that can be used for identification. In contrast, webbing clothes moths lack these distinctive markings, which makes recognizing casemaking moths based on their wing patterning a reliable method for managing pest populations.

Other characteristics of casemaking and webbing clothes moths, such as size, color, and head features, do not provide as clear a differentiation as the specific wing markings do. Thus, the presence of these three dark spots serves as a key identifying feature for those studying pest management, helping them to target control measures more effectively and accurately.