Eriocraniella platyptera is a moth of the family Eriocraniidae. It was described by Donald R. Davis in 1978. It is found in the Northeastern and Southern United States, from north-western New York to Texas.
Description The wingspan is 7.8–8.2 mm for males and about 8.2 mm for females. The forewings are relatively broad and immaculate dark fuscous with a prominent golden brassy to blue green iridescence. The hindwings are much paler, grayish fuscous with a slight purplish luster. The scales are moderately broad. Adults are on wing in May in one generation per year. The larvae are leaf miners of oaks, including Quercus ilicifolia.
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