Wikipedia
The Rhacophoridae are a family of frog species, which occur in tropical sub-Saharan Africa, South India and Sri Lanka, Japan; northeastern India to eastern China south through the Philippines and Greater Sundas, and Sulawesi. They are commonly known as shrub frogs, or more ambiguously as " moss frogs" or " bush frogs". Some Rhacophoridae are called " tree frogs". Among the most spectacular members of this family are numerous " flying frogs".
Although a few groups are primarily terrestrial, rhacophorids are predominantly treefrogs which are arboreal. Mating frogs, while in amplexus, hold on to a branch, and beat their legs to form a foam. The eggs are laid in the foam, and covered with seminal fluid, before the foam hardens into a protective casing. In some species, this is done in a large group. The foam is laid above a water source, so the tadpoles fall into the water once they hatch.
The species within this family vary in size from . Like other arboreal frogs, they have toe discs, and those of the genus Chiromantis have two opposable fingers on each hand. This family also contains the Old World flying frogs, including Wallace's flying frog ( Rhacophorus nigropalmatus). These frogs have extensive webbing between their hands and feet, allowing them to glide through the air.