Deia lineola is a moth in the family Oecophoridae, the only species in the genus Deia. It was described by John Frederick Gates Clarke in 1978. It is found in Chile.[1]
The wingspan is 11–12 mm. The forewings are blackish fuscous, from the middle of the costa to the dorsum a broad white fascia with scattered blackish-fuscous scales and from the apical fourth of the costa to the tornus a straight, white, transverse line. Beyond this line, a patch of olivaceous-grey scales is found and the termen is narrowly white. The hindwings are light grey, somewhat darker toward the margins.[2]