Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Cosmopterix sinelinea is a moth of the Cosmopterigidae family. It is known from South Carolina. Adults have been recorded in August. Male, female. Forewing length 4.8 mm. Head: frons shining ochreous with greenish and reddish reflections, vertex, neck tufts and collar shining pale bronze brown with strong golden gloss and greenish reflection; labial palpus, first segment very short, white, second segment three-quarters of the length of third, grey with white longitudinal lines laterally and ventrally, third segment white