Chrysocercops thapai is a moth of the Gracillariidae family. It is known from Malaysia and Nepal. The wingspan is 5.7-7 mm. The larvae feed on Shorea robusta. They mine the leaves of their host plant. The mine starts as a linear gallery occurring on the lower or rarely upper surface of the leaf. Later, after reaching the leaf-margin, it is broadened into a blotch usually elongate along the margin. Finally, in mature condition, the leaf margin with the mine is folded downward or rarely upward.