The Hispaniolan yellow tree frog or common treefrog (Osteopilus pulchrilineatus) is a species of frog in the Hylidae family endemic to Hispaniola, where it is found in both the Dominican Republic and Haiti. Its natural habitats are mesic broadleaf forests, riparian forests (including forest remnants), mangrove forests, grasslands, and marshes. It can also be found in agricultural landscapes (e.g., rice plantations, coffee and cacao plantations, and in the presence of livestock). Males call in flooded pools after heavy rains.