Leaf-footed bug, Leptoscelis tricolor (image) Smithsonian Tropical Research Institute Caption Male, leaf-footed bugs, Leptoscelis tricolor, with wings open as in flight. Ummat Somjee, Tupper post-doctoral fellow at the Smithsonian Tropical Research Institute studies the hidden metabolic cost of maintaining weapons like the large, spiny hind legs of these insects. Credit Credit: Ummat Somjee Usage Restrictions Credit: Ummat Somjee Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.