Red-webbed Tree Frog (Hypsiboas rufitelus)

This species has a mostly green body, with light blue patches in some dorsal parts. The eye is yellow with an horizontal black pupil. The disks at the end of the fingers are expanded, featuring a yellowish coloration. The best field mark for identification is the red webbing between its fingers, just like its name suggests. It is mainly nocturnal, hence not commonly seen during the day. It changes color in the night, when its red webs are more noticeable and the skin turns more yellowish.

A friend of mine found this individual on the edge of the trail that leads to the Agami colony at Pacuare Reserve. It was late in the day, so it was still sleeping and let me have a half-hour photoshoot session with it. This shot was taken just with natural light during a fairly strong wind that constantly moved the leaf up and down.
Most Tree Frogs are nocturnal, so I thought of artificially creating the night, although the frog still was sleeping. To get the black background, I lighted the frog from very close using a bike lantern. The light does not need to be very powerful, since at macro distances the difference between the light intensity at the subject and the background can be exaggerated.
Red-webbed Tree Frog - Boana rufitela - Rana Arborícola de Membrana Escarlata
A nocturnal frog with light green body, yellow fingertips and red webs of skin between them.
Red-webbed Tree Frog - Boana rufitela - Rana Arborícola de Membrana Escarlata (3)
The horizontally elliptical pupil is black and is easily seen against the yellow iris.
Red-webbed Tree Frog - Boana rufitela - Rana Arborícola de Membrana Escarlata (2)
The red skin that joins the fingers is barely visible in this picture.

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