Rhacophorus exechopygus is a species of frog in the Rhacophoridae family found in the Central Highlands of Vietnam and in the adjacent Annamite Range in Laos. Its common name is spinybottom tree frog or Tramlap flying tree frog. Natural habitats of Rhacophorus exechopygus are evergreen rainforests where it is found on vegetation on swampy banks of forest streams. It is threatened by habitat loss and degradation, mainly caused by agriculture, logging, and human settlement.