Machimus notatus is a species of robber fly belonging to the family Asilidae. It is commonly known as the "notched robber fly" due to the distinctive notch on its thorax. This insect is characterized by its large size, reaching up to 2 centimeters in length, and its predatory behavior, preying on other insects in flight. Machimus notatus can be found in various habitats, including meadows, forests, and gardens, and is known for its impressive flying abilities and agile hunting techniques.