G. A. Fischer and Reichenow, 1884,
Usually treated as conspecific with Z. poliogastrus, but see comments under that species. Differs from poliogastrus by its duller yellow throat (ns); rich olive-green vs buffy-grey flanks (3); yellowish vs whitish belly (2); lack of yellow on forehead (2); and much larger eyering (mensural character; 2); from Z. kaffensis by its lack of yellow on forehead (2); much larger eyering (3); duller yellow throat and belly (1); and larger size (wing, bill; 1); from Z. kulalensis by its lack of yellow on forehead (2); darker, duller yellow throat and belly (1); olive-green vs grey flanks (3); and much larger eyering (2); from Z. kikuyuensis by its lack of yellow on forehead vs large patch (3); much duller and less extensive yellow throat to belly (2); paler olive-green flanks (1); and longer wing (1); and from Z. silvanus, Z. mbuluensis and Z. winifredae in characters given under those species. Recent research suggests most of these taxa are also vocally distinct from one another#R, but work needed to assess levels of divergence. Monotypic.
N Tanzania (Mt Kilimanjaro region, Arusha, Mt Meru, Essimingor, Lossogonoi, Lolkissale).
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