[48.] GUIRACA CYANEA (Linn.).
(INDIGO FINCH.)
Guiraca cyanea, Scl. et Salv. Nomencl. p. 27; White, P. Z. S. 1882, p. 598 (Catamarca). Guiraca cyanea argentina, Sharpe, Cat. B. xii. p. 73.
Description.—Indigo-blue; lesser wing-coverts azure-blue; wing- and tail-feathers black; forehead azure-blue, and head washed with the same colour; bill and feet black: total length 6·8 inches, wing 3·6, tail 2·9. Female brown; beneath brighter and rufescent.
Hab. Brazil, Paraguay, and Northern Argentina.
White found this bird “not uncommon around Andalgala in Catamarca, in hedges and thickets.” Mr. Sharpe separates the Argentine bird as a subspecies, from its larger size.
[49.] GUIRACA GLAUCOCÆRULEA (d’Orb. et Lafr.).
(GLAUCOUS FINCH.)
Guiraca glaucocærulea, Scl. et Salv. P. Z. S. 1868, p. 139 (Buenos Ayres), iid. Nomencl. p. 27; Durnford, Ibis, 1877, p. 170 (Buenos Ayres); Salvin, Ibis, 1880, p. 353 (Salta); Barrows, Bull. Nutt. Orn. Cl. viii. p. 92 (Concepcion); Sharpe, Cat. B. xii. p. 75. Coccoborus glaucocæruleus, Burm. La-Plata Reise, ii. p. 488 (Paraná).
Description.—Uniform glaucous blue; wings and tail blackish, the feathers edged with light blue: total length 5·7 inches, wing 2·9, tail 2·3.