Rectiostoma earobasis is a moth in the family Depressariidae.

The forewings are pale yellow basally, edged with dark brown on the costa from the base and at the anal angle.

The distal margin of the yellow area is bordered by a dark brown line immediately paralleled by a broad, transverse band of iridescent violet.

The apical half of the forewing is dark brown suffused with iridescent blue violet.

The hindwings are dark brown with white patch on the anterior margin.