Basileuterus auricapillus, Sharpe, Cat. B. x. p. 393. Basileuterus vermivorus, Scl. P. Z. S. 1865, p. 283; Scl. et Salv. Nomencl. p. 10; White, P. Z. S. 1882, p. 594 (Misiones).
Description.—Above olive-yellow, lightest on the rump and upper tail-coverts; tail-feathers ashy brown, with yellowish margins; quills dusky; crown of head light orange-chestnut; nape and hind neck pale ashy grey; on each side of the crown a broad black stripe extending from the bill to the hind neck, also a streak of ashy white above the eye; under surface bright yellow; axillaries and under wing-coverts white; bill and feet brownish: total length 4·5 inches, wing 2·2, tail 2·05. Female similar.
Hab. South America.
This species, which is widely spread over the northern portion of South America, was found in Paraguay by Azara, and in the province of Misiones by White.
[20.] SETOPHAGA BRUNNEICEPS, d’Orb. et Lafr.
(BROWN-CAPPED WOOD-SINGER.)
Setophaga brunneiceps, Burm. La-Plata Reise, ii. p. 473 (Tucuman); Scl. et Salv. Nomencl. p. 11; White, P. Z. S. 1882, p. 595 (Catamarca); Sharpe, Cat. B. x. p. 428.
Description.—General colour dull olive-yellowish; wing-coverts dark slaty grey; quills blackish; upper tail-coverts slaty grey, washed with olive; tail-feathers blackish—the outer pair white, the next pair white edged with black on the outer web, the third pair with a large white mark at the end; crown of head deep chestnut; neck slaty grey; under surface of body bright yellow; under tail- and wing-coverts white: total length 5·0 inches, wing 2·45, tail 2·4. Female similar.
Hab. Bolivia and Northern Argentina.
White obtained a pair of these birds on the Sierra of Totoral, Catamarca, in July 1880. He describes them as quick in their movements and difficult to shoot. The species was originally discovered by d’Orbigny in Bolivia.