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A large eastern Hyperolius (both sexes 27-34 mm), the males green with a thin light dorsolateral line, the females with large round light spots. There is a sexual difference in coloration: males grass green to yellowish, sometimes with diffuse darker spots. A dark canthal line and a light canthal and dorsolateral line are often present. Ventrum whitish, throat and underside of limbs as dorsum. Females light to dark brown with light golden, black-edged canthal lines and rounded dorsal spots. Ventrum orange, limbs and feet red. Pupil horizontal.
The populations from South Africa and southern Mozambique differ somewhat from those of further north: males are often brown rather than green and females often have fewer spots, sometimes with dorsolateral lines instead. That makes them almost indistinguishable from H. puncticulatus, which according to Poynton and Broadley (1987) does not penetrate that far south. Furthermore there are indications of intergradation with H. semidiscus.Males can closely resemble H. pusillus and H. viridis in pattern and morphology but are much larger.
There is a great similarity, possibly reflecting true relationship, to the West African H. guttulatus. A comparison with H. kachalolae and H. pseudargus is made under these species.
This account was taken from "Treefrogs of Africa" by Arne Schiøtz with kind permission from Edition Chimaira publishers, Frankfurt am Main.