Afrixalus osorioi

Afrixalus osorioi: The Angola Banana Frog

Afrixalus osorioi, commonly known as the Angola banana frog or Osorio's spiny reed frog, is a species of frog belonging to the family Hyperoliidae. This species is found across a range that includes Angola, the Democratic Republic of the Congo, Gabon, western Kenya, and Uganda.

Description and Characteristics

Adult Afrixalus osorioi frogs exhibit a distinctive dorsal pattern of light and dark brown, frequently featuring a prominent rectangular dark spot that extends towards the anus. Adult males are generally smaller, with a snout-to-vent length ranging from 27 to 31 mm, while females are larger, measuring between 32 and 35 mm. A notable characteristic of the males is the presence of small, scattered asperities on the dorsal surfaces of their head, body, and limbs. The tibia also displays a light coloration on its upper side.

Habitat and Breeding Habits

The natural habitat of Afrixalus osorioi includes degraded secondary forests and heavily altered former forest areas, such as farm bush, within the central African rainforest belt. This adaptable species demonstrates a preference for breeding in small water bodies, which can be either temporary or permanent, as long as they are accompanied by overhanging vegetation. Interestingly, they have also been observed to utilize artificial water bodies, like old drums, for their breeding activities.

Vocalization and Conservation

The male Afrixalus osorioi produces a specific advertisement call composed of a series of clicks, emitted at a rate of 18 to 30 clicks per second. The species is considered abundant and highly adaptable, which suggests that it is unlikely to face significant conservation threats. Furthermore, its presence in several protected areas indicates a healthy and stable population.