Metathrinca rosaria is a moth in the family Xyloryctidae. It was described by Edward Meyrick in 1907. It is found in Bhutan.
The wingspan is 23–24 mm. The forewings are shining snow white with a submarginal series of seven black dots around the apex and termen. The hindwings are white.Journal of the Bombay Natural History Society. 17 (3): 740.
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