Spinulata acutipennis is a moth in the Cossidae family. It is found in Guatemala. The wingspan is about 37 mm. The forewings are crossed by short and indistinct pale brown lines. There is a large fuscous brown spot in the cell and a small vertical streak below the cell before the middle, as well as a short horizontal dark brown streak above the inner margin antemedially. The costal margin is medially shaded with grey, beyond it shaded with brown. The hindwings are white.