Didymoctenia is a monotypic moth genus in the family Geometridae and subfamily Ennominae which was described by Warren in 1901. Its only species, Didymoctenia exsuperata, the thick-lined bark moth, was first described by Francis Walker in 1860. It is found in Australia.[1]
Early instar caterpillars are brownish white with varying dots with a brown head. As the caterpillar reaches its last instar it turns green and will be almost completely covered in small black dots.[2]