Adult length: 40 mm.They have bright orange feet and can change their colour in order to camouflage themselves. The top of the body is cream to brown, sometimes with small black spots. A distinctive pale dorsolateral line runs from the snout along the flanks, with a dark brown lateral band underneath. A fine dark line usually separates the pale line from the brown band. The concealed surfaces of limbs, webbing and discs are orange to red. Underneath the frog is creamy white and slightly granular. The gular flap in males is bright ochre. Pupil horizontal.
Tadpoles reach 40 mm. They are brown with longitudinal darker bands on the tail.
Its natural habitats are Mediterranean-type shrubby vegetation, rivers, swamps, intermittent freshwater lakes, freshwater marshes, intermittent freshwater marshes, and ponds. It is frequently found lying at the bottom of arum lilies (Zantedeschia aethiopica), trying to catch pollinating insects. It is threatened by habitat loss.
These frogs are sometimes found in arum lily flowers where they can change colour to perfectly match the surroundings. This makes them virtually invisible to predators as well as to their insect prey. They use the pollen of the flowers to camouflage themselves. At night they creep out of the flower and down the stem to hunt for insects.
- Minter, L., Channing, A. & Harrison, J. 2004. Hyperolius horstockii. 2006 IUCN Red List of Threatened Species. Downloaded on 22 July 2007.
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