Acrocercops aellomacha is a moth of the Gracillariidae family, known from New Zealand. The wingspan is 7–9 mm. The host plants for the species include Nothopanax arboreum, Nothopanax simplex, and Nothopanax sinclairii. They mine the leaves of their host plant. The larva, on hatching, at once mines into the leaf through the shell of the egg, and as a general rule takes several spiral turns before mining in any definite direction. The mine throughout is a very gradually widening gallery, never becoming blotched, and rarely do portions cross each other except in the smaller leaves. Its direction invariably takes it along both sides of the midrib, this obstacle being crossed in its upper and thinner part. From these long straight portions a varying number of blind arms or branches of varying l