An abundant bushland Hyperolius from West Africa and western Cameroun. Males medium-sized (24–31 mm), females large, (30–40 mm) with a long pointed snout. Phase F with a dense, uniform green dorsum. Ventrum yellow. No dark lateral pigmentation. Pupil horizontal.
Three subspecies were established by Schiøtz (1967), of which only two have been named: 1. Hyperolius c. concolor. – phase J. with an indistinct hourglass pattern or longitudinal stripes but without a distinct light canthal and dorsolateral stripe. Distributed from eastern Sierra Leone to western Togo.
2. Hyperolius c. ibadanensis Schiøtz 1967. – Many of the males have a distinct light canthal and dorsolateral line. Found in Nigeria and also, according to Amiet (1978), in the vicinity of Mamfe, Cameroun.
3. Hyperolius concolor ssp. – Apparently no males with distinct light canthal line. Occurs in South-east Nigeria east of Cross River and adjacent Cameroun.
The tadpole, with the usual dentition, has a dark stripe laterally from the root of the tail one-fourth to one-third towards the tip of the tail.
This species shows developmental changes in patterning, with two phases, J (juveniles and many mature males) and F (mature females and some mature males). All newly metamorphosed individuals are phase J, which is normally brownish to green with paired light dorsolateral lines, or an hourglass pattern. All females, and some males, develop into phase F before the first breeding season. Phase F is often colorful and variable, showing the diagnostic color characteristics for the species or subspecies. Either well-defined morphs may be present, or graded variation.
Hyperolius concolor is probably closely related to H. balfouri, H. kivuensis and H. tuberilinguis and the four species are sometimes regarded as belonging to one superspecies (Schiøtz 1975).
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.
Schiøtz, A. (1975). The Treefrogs of Eastern Africa. Steenstrupia, Copenhagen.
Schiøtz, A. (1967). ''The treefrogs (Rhacophoridae) of West Africa.'' Spolia Zoologica Musei Hauniensis, 25, 1-346.
Amiet, J.-L. (1978). ''A propos d'Hyperolius platyceps Boulenger, H. kuligae Mertens et H. adametzi Ahl (Amphibiens Anoures).'' Annales de la Faculté des Sciences du Cameroun, 25, 221-256.
It lives in clearings in forest and degraded forest, as well as in cultivated land, secondary brush, and gallery forests in savannah. It avoids closed forest. It breeds in small, sometimes putrid, pools and marshes. The eggs are laid on leaves above water (the leaves are folded), and the larvae fall into the water, where they develop.
Life History, Abundance, Activity, and Special Behaviors:
The call is a succession of brief, hard non-melodic clicks. Sonograms show that the voice is often a double click, but the two elements follow so fast that the audible impression is of a single, rather coarse click.
The eggs are unpigmented and the jelly milky.
SchiÃ¸tz, A. (1999). Treefrogs of Africa. Edition Chimaira, Frankfurt am Main.
SchiÃ¸tz, A. (1975). The Treefrogs of Eastern Africa. Steenstrupia, Copenhagen.
SchiÃ¸tz, A. (1967). ''The treefrogs (Rhacophoridae) of West Africa.'' Spolia Zoologica Musei Hauniensis, 25, 1-346.
Due to its large range it is likely that there are declines in some areas due to habitat loss. It is sometimes found in the international pet trade but at levels that do not currently constitute a major threat.