Siphanta acuta (also known as Fish Moth) is a plant-feeding insect in the family Flatidae; this species of planthopper is found in various parts of the world, and is sometimes called the green planthopper or the torpedo bug. About 15 mm long, they resemble small leaves and are generally found in trees. Their wings are triangular, and the back edge and corners of their wings are lined with dotted red. They are known for jumping quickly from plant to plant. One of the planthopper’s main predators is the steelblue ladybird, which eats the eggs of the planthoppers.