Found calling from a water-filled tree hole. Couldn't angle the flash and camera in a way to get a decent photo.
Phrynohyas resinfictrix. Please acknowledge Andy Jones for any use of these images.
Amazon Milk Frog (Trachycephalus resinifictrix) from San Jose de Payamino, Ecuador
The Mission golden-eyed tree frog or Amazon milk frog (Trachycephalus resinifictrix) is a large species of arboreal frog native to the Amazon Rainforest in South America. It is sometimes referred to as the blue milk frog. It was first discovered along the Maracanã River in Brazil. This species was previously within the genus Phrynohyas, which was recently synonymized with Trachycephalus.