Donacaula immanis is a moth in the Crambidae family. It was described by Zeller in 1877. It is found in Bolivia and Brazil (Amazon, Rio Grande do Sul). The length of the forewings is 40–50 mm. The forewings of the males are yellowish white intermixed with light brown scales and irrorated with brown. The ground colour of the forewings of the females is pale yellow. The hindwings are yellowish white.