The straight bill and red colour of the tail-feathers at once distinguish this species from the former. Burmeister obtained specimens of it in the Sierra of Uspallata, where it was met with hopping about the rocks and feeding on insects. 182. UPUCERTHIA LUSCINIA (Burm.). (WARBLING EARTH-CREEPER.) +Ochetorhynchus luscinia+, _Burm. La-Plata Reise_, ii. p. 464 (Mendoza, Paraná). +Upucerthia luscinia+, _Scl. et Salv. Nomencl._ p. 62; _White, P. Z. S._ 1882, p. 610 (Catamarca); _Salvin, Ibis_, 1880, p. 358 (Salta). _Description._--Above earthy brown; front, lores, and rim round the eye bright rufous; wings blackish, outer webs more or less edged with rufous earthy brown; tail earthy brown, lateral rectrices tinged with rufous; below pale cinereous with a slight rufescent tinge; throat clear white; under wing-coverts and inner margins of the wing-feathers cinnamon-red; bill hazel, paler at the base; feet pale brown: whole length 7·5 inches, wing 3·0, tail 3·1. _Female_ similar. _Hab._ Argentina. Professor Burmeister was the first discoverer of this species, which he tells us is common near Mendoza, in Paraná, and in the neighbouring pampas. In Paraná he found it nesting under the roof of his house and feeding upon insects. The eggs are pure white. It is the _Ruisiñor_ or "Nightingale" of the natives, whence he gave it the specific name _luscinia_--a strange name for any species in the shrill-voiced Dendrocolaptine family. 183. CINCLODES FUSCUS (Vieill.). (BROWN CINCLODES.) +Cinclodes fuscus+, _Scl. et Salv. Nomencl._ p. 62; _Durnford, Ibis_, 1877, p. 179 (Buenos Ayres); _White, P. Z. S._ 1882, p. 610 (Catamarca); _Barrows, Bull. Nutt. Orn. Cl._ viii. p. 205 (Entrerios and Pampas). +Cinclodes vulgaris+, _Burm. La-Plata Reise_, ii. p. 463 (Mendoza, Paraná). _Description._--Above dark earthy brown, lores and superciliaries whitish; wings blackish, with a broad transverse cinnamomeous bar; outer tail-feathers blackish, broadly tipped with pale cinnamomeous white; beneath pale cinereous, with a cinnamomeous tinge; throat white, slightly spotted with blackish; bill and feet horn-colour: whole length 7·3 inches, wing 4·0, tail 3·0. _Female_ similar. _Hab._ Argentina, Chili, Peru, Bolivia, and Ecuador.