Hylidae is a wide-ranging family of frogs commonly referred to as "tree frogs and their allies". However, the hylids include a diversity of frog species, many of which do not live in trees, but are terrestrial or semiaquatic.
The European tree frog is a small tree frog. As traditionally defined, it was found throughout much of Europe, Asia and northern Africa, but based on molecular genetic and other data several populations formerly included in it are now recognized as separate species, limiting the true European tree frog to Europe from France to Poland and Greece.
The American green tree frog is a common arboreal species of New World tree frog belonging to the family Hylidae. This nocturnal insectivore is moderately sized and has a bright green to reddish-brown coloration. Commonly found in the central and southeastern United States, the frog lives in open canopy forests and permanent waters with abundant vegetation. When defending territory, the frog either emits aggressive call signals or grapples with intruders. To avoid predation, the frog hides in its aquatic habitat.
Hyla japonica, commonly known as the Japanese tree frog, is a species of anuran native to Japan, China, and Korea. H. japonica is unique in its ability to withstand extreme cold, with some individuals showing cold resistance at temperatures as low as −30 °C for up to 120 days. H. japonica are not currently facing any notable risk of extinction and are classified by the IUCN as a species of "least concern". Notably, H. japonica have been sent to space in a study that explored the effect of microgravity on H. japonica. Hyla japonica is synonymous with Dryophytes japonicus.
The gray treefrog is a species of small arboreal holarctic tree frog native to much of the eastern United States and southeastern Canada.
Cope's gray treefrog is a species of treefrog found in the United States and Canada. It is almost indistinguishable from the gray treefrog, and shares much of its geographic range. Both species are variable in color, mottled gray to gray-green, resembling the bark of trees. These are treefrogs of woodland habitats, though they will sometimes travel into more open areas to reach a breeding pond. The only readily noticeable difference between the two species is the mating call — Cope's has a faster-paced and slightly higher-pitched call than D. versicolor. In addition, D. chrysoscelis is reported to be slightly smaller, more arboreal, and more tolerant of dry conditions than D. versicolor.
The Pine Barrens tree frog is a species of New World tree frog. It is becoming rare due to habitat loss.
The squirrel tree frog is a small species of tree frog found in the south-eastern United States, from Texas to Virginia. This is an introduced species in the Bahamas. Squirrel tree frogs are small frogs, about 1.5 inches in length as adults. There are several color variations, but most commonly they are green and look very much like the American green tree frog. They can also be varying shades of yellow or brown, sometimes with white or brown blotching.
The canyon tree frog is a species of tree frog native to the rocky plateau areas of southern United States, primarily in New Mexico and Arizona, but it also ranges to Utah, Texas, and Colorado, and as far south as the Mexican states of Michoacán, México, Guanajuato, Guerrero, and Oaxaca.
Dryophytes gratiosus, commonly known as the barking tree frog, is a species of tree frog endemic to the south-eastern United States.
The bird-voiced tree frog is a species of frog in the family Hylidae, endemic to the United States. Its natural habitats are temperate forests, shrub-dominated wetlands, and swamps.
The pine woods tree frog is a species of frog in the family Hylidae, endemic to the southeastern United States.
Dryophytes immaculatus, the Chinese immaculate treefrog, is a species of frog in the family Hylidae endemic to China. The natural habitat of the species has been generally transformed into rice fields and it is threatened by habitat loss.
Hyla savignyi, also known as the Savigny's treefrog, lemon-yellow tree frog, and Middle East tree frog, is a species of frog in the family Hylidae. The species is endemic to the Middle East, where it has been declared an endangered species.
Wright's mountain tree frog is a species of frog in the family Hylidae found in Mexico and the United States. Its natural habitats are temperate forests, temperate grassland, rivers, and freshwater marshes. Dryophytes wrightorum has been regarded as a synonym of Dryophytes eximius, the mountain tree frog, which is listed as the state amphibian of Arizona. As presently circumscribed, Dryophytes eximius is endemic to Mexico and does not occur in Arizona. It is the state amphibian of Arizona.
A tree frog is any species of frog that spends a major portion of its lifespan in trees, known as an arboreal state. Several lineages of frogs among the Neobatrachia suborder have given rise to treefrogs, although they are not closely related to each other.
Dryophytes is a genus of Ameroasian tree frogs in the family Hylidae. They are found mostly in North America, but the genus also includes three species found in eastern Asia.
Dryophytes flaviventris, also known as the yellow-bellied tree frog, is a species of Ameroasian tree frog native to the central lowlands of South Korea, where it is known to occur in Buyeo, Nonsan and Iksan. It was described in 2020 after research showed it to have genetic and morphological differences compared to Dryophytes immaculatus and Dryophytes suweonensis. The yellow-bellied tree frog is geographically separated from D. suweonensis by the Chilgap mountain range, and from other Dryophytes species by the Yellow Sea. The yellow bellied tree frog is estimated to have split off from D. suweonensis approximately 0.97 million years ago.
Hyla perrini, also known as Perrin's tree frog or Po's tree toad, is a species of frog in the family Hylidae. It is endemic to Europe. It is known from the Po Plain in northern Italy, and in adjacent Switzerland (Ticino) and Slovenia.
