Character analyses have been carried out on the North American species in the genus Ectoedemia Busck in order to obtain a measure of their phenetic affinities. The characters used (140) were not only morphological but ranged widely through aspects of biology, and led to the production of up-dated descriptions. Diagnoses based on, and interpreted through, the numerical results are also given. The most important results from seven cluster analyses and principal co-ordinates analyses with minimum spanning trees, contouring, nearest neighbours and similarity coefficients are discussed.

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Journal Beaufortia
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Wilkinson, Christopher. (1988). Character analyses for discrimination and affinity recognition of the North American Microlepidoptera in the genus Ectoedemia Busck (Nepticulidae: Lepidoptera). Beaufortia, 37(7), 121–154.