Hyla angustilineata Taylor, 1952 The narrow-lined tree frog (Isthmohyla angustilineata) is a species of frogs in the family Hylidae found in the mountains of Costa Rica and western Panama.

[2] Its natural habitats are humid lower montane rainforests.

It is a nocturnal species that breeds in small puddles and water-filled depressions.

[1] Population declines of this species have been attributed to chytridiomycosis.

It is found in several protected areas.