A large Afrixalus (males 27–31 mm, females 32–35 mm) from bushland from Angola to Uganda, with a pattern in light and dark brown, normally with a rectangular dark dorsal spot and a narrow extension of the light dorsal pattern to the anus. Males have small, scattered and inconspicuous asperities on dorsal surfaces of head, body and limbs. Tibia with light upper side.
Most populations have a very constant pattern, but Laurent mentions that some populations vary considerably.
Distribution and Habitat
Country distribution from AmphibiaWeb's database: Angola, Congo, the Democratic Republic of the, Kenya, Uganda
Bushland localities in the central forest belt from Uganda westwards through R. D. Congo and to Angola. Has not been collected in Cameroun.
Life History, Abundance, Activity, and Special Behaviors
Voice is a typical Afrixalus call consisting of a series of clicks. In a recording from Uganda these were made at a rate of 18–20 per second; in a recording from central R. D. Congo, at 20–30 per second; in both cases with an indistinct frequency–intensity maximum at 2500–3000 cps.
This account was taken from "Treefrogs of Africa" by Arne Schiøtz with kind permission from Edition Chimaira publishers, Frankfurt am Main.
Schiøtz, A. (1999). Treefrogs of Africa. Edition Chimaira, Frankfurt am Main.
Written by Arne Schiøtz (arne AT schiotz.dk), *
First submitted 2000-12-25
Edited by Kellie Whittaker (2008-09-09)
Species Account Citation: AmphibiaWeb 2008 Afrixalus osorioi: Osorio's Spiny Reed Frog <http://amphibiaweb.org/species/461> University of California, Berkeley, CA, USA. Accessed Nov 18, 2019.
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Citation: AmphibiaWeb. 2019. <http://amphibiaweb.org> University of California, Berkeley, CA, USA. Accessed 18 Nov 2019.
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