Afrixalus weidholzi (Mertens, 1938)

(Fig. 4C)

FIELD MATERIAL. — Burkina Faso • 23 ♂ (SVL 17.4-21.2 mm); Comoé-Léraba Forest; 9.82802°N, – 4.62727°W; 230 m a.s.l; 1-7.VIII.2018; H. J. Ayoro & A. Ohler leg.; on grasses in a swampy valley; hand capture • 1 ♂; W National Park, Kabougou River (in its protected part); 11.96865°N, 2.0125°E; 280 m a.s.l.; 19. VI.2018; H. J. Ayoro leg.; in a bush near water body; acoustic report • 1♂; Koubri, downstream from the Nabazana dam; 12.20322°N, – 1.35101°W; 280 m a.s.l.; 17.VII.2017; H. J. Ayoro & A. Ohler leg.; close to a paddy field; acoustic report .

DESCRIPTION. — 23 specimens examined. Frogs with SVL from 17.4-21.2 mm in 23 males, smaller than A. vittiger . Specimens with a yellow or a very intense silvery white back (Fig. 4C), often with a fine brown vertebral line, at least in the posterior part of the back. Laterally, a less distinct dark band from the snout to the groin. On the shank, presence of dark brown longitudinal bands.

HABITAT. — This species was usually collected on grass at a height not exceeding 0.5-1.5 m (Fig. 2D). During the day, resting animals can be found above water on plants (Lamotte & Xavier 1981; SchiØtz 1967, 1999). Males call at night, usually on high grasses, a few meters from the pond edges (Rödel et al. 2006). Afrixalus weidholzi is a common species which has a wide range in West African drier savannah zones (Rödel 2000; Padial et al. 2013) and occurs occasionally in the same habitats as A. vittiger .