Rhacophorus lateralis is an endangered rhacophorid tree frog endemic to the Western Ghats in South India. It has several common names: small tree frog, Boulenger's tree frog, small gliding frog, and winged gliding frog. After its original description in 1883 by George Albert Boulenger, the frog was rediscovered in Coorg in 2000 and has since been found in many parts of the Western Ghats around southern Karnataka and northern Kerala. Along with R. malabaricus, it is one of the few anuran amphibians in India that constructs its nest above the ground using leaves.