Eretmocera basistrigata is a moth of the family Scythrididae. It was described by Baron Walsingham in 1889. It is found in Cape Verde, Gambia, Kenya and Namibia. The wingspan is 13–14 mm. The forewings are blackish brown with a basal streak in the fold reaching the middle of the wing. There is a large, oblique spot at the tornus and beyond that a costal, much smaller spot. Both these spots are yellow. The hindwings are red in the basal three-fourths, but then gradually become darker. The apical part is blackish. Adults are on wing from September to February.