Outcrop Sabrewing

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Sexual dimorphism and variation among paratypes and non-type material. Sexes are alike, but males in definitive plumage have the shafts of the three outer primaries, which lack part of the outer vane, broad and flattened, and strongly bent distally; and bill slightly shorter and straighter than that of female (Figure 1). Young males, which can be separated from definitive plumage birds by the corrugated rather than smooth bill texture as in adults (Ortiz-Crespo 1972), do not have broad shafts of the outer primaries. Individual variation in plumage is small and apparently unrelated to sex, age or geographic distribution. Individual variation is shown in the intensity of the coppery reflections in the head and the color of upperparts, which appears more golden in some specimens and more bluish in others. In many specimens it is possible to observe a small invasion of bright bluish black in the area dominated by the dark olive grey in the tail feathers. Young birds have somewhat more pointed and narrower rectrices than adult birds, a feature already described for members of the C. aequatorialis / obscurus complex (Naumburg 1930). Table 1 presents descriptive measurements of this taxon, in comparison to other members of the complex. Geographic distribution. Campylopterus calcirupicola has been recorded from Divinópolis de Goiás (northeastern state of Goiás) and Coribe (southwestern state of Bahia) to Bocaiúva (northern state of Minas Gerais) on both banks of the São Francisco River, as well as in the Paranã River valley, an important tributary of the Tocantins River, west of the Serra Geral (Figures 9 and 10). The altitudinal range of this new species is between 460 – 880 m asl. The range of C. calcirupicola probably extends to southeastern Tocantins (Dornas et al. 2014) and the southern part of the state of Piauí (Santos 2004), from where there are sight records of C. largipennis. We believe that the specimen of C. largipennis from “ Posse, Goiás ” cited by Silva (1990) as housed in the MNRJ refers to the specimen from “ Galheiros ” housed in the same institution and mentioned by Ruschi (1951), probably representing a toponymic mistake committed by Silva (1990).