Theloderma, the bug-eyed frogs, mossy frogs or warty frogs, is a genus of frogs in the family Rhacophoridae, subfamily Rhacophorinae. They are found from northeastern India and southern China, through Southeast Asia, to the Greater Sunda Islands; the highest species richness is in Indochina. Some species, especially T. corticale, are sometimes kept in captivity.
They are medium to small-sized frogs with maximum snout–vent lengths that range from 2 to 7.5 cm (0.8 to 3.0 in) depending on species, and their skin can be smooth, warty or tuberculated. The genus includes species that are contrastingly marked, but most are very well-camouflaged, resembling plant material (typically bark or moss) or bird droppings.
Little is known about their behavior, but they feed on small arthropods. In species where known, breeding takes place in a small water pool in a cavity of a tree, bamboo or karst. The female places 4–20 eggs just above the water. After about one to two weeks they hatch into tadpoles that drop into the water; they metamorphose into froglets after a few months to a year.