Savage's giant Costa Rica book calls this "an uncommonly seen nocturnal treefrog that is usually found only near breeding sites." This one didn't seem to be too close to a stream or pond, but it was dark and maybe I overlooked a nearby source of water.
- Guyer, C., Donnelly, M. A. 2005. Amphibians and Reptiles of La Selva, Costa Rica, and the Caribbean Slope
- Savage, J. M. 2002. The Amphibians and Reptiles of Costa Rica