Acrocercops zorionella, also known as the karamu leafminer, is a species of moth in the family Gracillariidae. It is endemic to New Zealand. The larvae feed on , Coprosma lucida, Coprosma retusa, Coprosma robusta and Coprosma tenuifolia. They mine the leaves of their host plant. The larva mines directly into the leaf through the bottom of the egg. The mine starts as a long, slender, slightly tortuous, gradually widening gallery. The first part being on the under-surface of the leaf, close against the cuticle, showing up white and silvery by reflected light. The remainder of the mine, however, is on the upper surface. In the last stage the gallery expands, more or less abruptly, into a large irregular blotch. It usually follows the midrib or margin of the leaf along its greater extent, some