Phelsuma antanosy is only
known from three smaller coastal forests in the Tolagnaro region.
One of these forests is already almost completely cleared. This underlines the strong endangerment of this
species. The forests are all approx. 0.1 km to 4 km from the coast.
Near Petriky, ca. 15 km
north-east from Tolagnaro, South-East Madagascar.
The annual amount of precipitation
reaches from 800 to 2000 mm. The animals live on Ravenala madagascariensis and Pandanus species where
it finds protection between the
reaches approx. 10 cm and can be counted to the smaller
species of the genus. They are coloured bright green. On the rear part of the back three clear red longitudinal lines are recognizable,
from which the middle is the most intensive. The head design consists of two red crossbars and a red-brown lip line, which run from the nostril to the eye. Between the crossbar as well as at the upper edge of eyes,
Phelsuma antanosy shows a blue colouring. The eyes are dark-brown and
bordered yellow . The throat, belly and tail's lower surface are white.