Koechlin's tree frog

Koechlin's tree frog ("Dendropsophus koechlini") is a frog that lives in Bolivia, Colombia, and Brazil.
The adult male frog can be 23.8 mm long from nose to rear end and the adult female frog can be 28.1 cm long. This frog can change color. It is yellow or tan at night and darker brown with markings during the day.
This frog is named after Jose E. Koechlin von Stein, who owned the Albergue Cuzco Amazonico.