Frog of the Week

Green-thighed Tree FrogĀ (Nyctimystes brevipalmatus)

Green-thighed Tree FrogĀ (Nyctimystes brevipalmatus)
photo by Indra Bone

Common Name: Green-thighed Tree Frog
Scientific Name: Nyctimystes brevipalmatus / Litoria brevipalmataĀ 
Family: Hylidae – Tree Frog family
Location: Australia
Size: 1.6 inches (40 mm)

The Green-thighed Tree Frog gets its named from the green markings in its thighs, that can also be blue in color. They live in rainforests, eucalypt forests, and heath. They hide amongst the leaf litter and low shrubbery, not up in the trees.

The Green-thighed Tree Frog is an explosive breeder, mating after heavy rains. They only breed one day a year. Their breeding season lasts from September to April. The male frogs move to flooded water bodies to start calling. Once the female frog arrives, the male frog grasps the female from behind in amplexus. Then, the female frog lays her eggs and the male frog fertilizes them. The female frog lays between 500 to 600 eggs. The eggs hatch within a day and the tadpoles take between 40 to 100 days to complete their metamorphosis.

The International Union for the Conservation of Nature (IUCN) Red List assess the Green-thighed Tree Frog as Least Concern for Extinction. They have a decent size range and presumed large population. Previously, it was assessed as Endangered with Extinction. However, increased surveys found more populations of the frog in Queensland, changing researchers opinions.

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