Sharp-tailed Streamcreeper (Lochmias nematura) [XC421833]
by Caio Brito from , Brazil (call)
Sharp-tailed Streamcreeper (Lochmias nematura) [XC705795]
by Mateus Gon\u00e7alves Santos from Cochabamba: near Mirador de Carahuasi 1, Brazil (alarm call)
Subspecies
Genus thought by some authors to be possibly closer to Margarornis and other more arboreal furnariids on basis of similarities in colour pattern, and that traditional placement near Sclerurus reflects morphological convergence resulting from terrestrial habits. However, analyses of DNA-sequence data indicate that it is more closely related to Upucerthia and Furnarius. Sight records from western Guyana presumed to pertain to subspecies castanonotus. Population from western Andes of Colombia, known from perhaps only one specimen (greyer below than sororius), may represent an undescribed subspecies.
The following 6 subspecies are recognised:
nelsoni Aldrich, 1945 - Extreme eastern Panama (Cerros Pirre, Malí and Quía).
sororius Sclater, PL & Salvin, 1873 - Coastal range of northern Venezuela (Yaracuy east to Distrito Federal), and Andes from Colombia (Valle and Cauca in western range, western slope in Cauca in central, and southern from Cundinamarca in eastern range) south to northern Peru (south to San Martín).
chimantae Phelps & Phelps Jr, 1947 - Tepui region of south-eastern Venezuela (southern Amazonas, Bolívar).
castanonotus Chubb, C, 1918 - South-eastern Venezuela (Cerro Cuquenán, Mt Roraima); sight records also from adjacent western Guyana (Potaro Plateau).
obscuratus Cabanis, 1873 - Andes from central Peru (southern from Huánuco) south to north-western Argentina (Jujuy, Salta).
nematura (Lichtenstein, 1823) - Interior and south-eastern Brazil (southern from southern Mato Grosso, southern Goiás, Minas Gerais, southern Bahia and Espírito Santo), eastern Paraguay, north-eastern Argentina (south to Entre Ríos) and Uruguay.
BirdLife International Species Factsheet