_Description._--Above black; rump and lesser wing-coverts bright rufous; large loral spot on each side white; wings and tail black; alar speculum white; beneath, throat white, band across the breast black; belly pale rufous; flanks and crissum dark rufous; under wing-coverts white; bill and feet black: whole length 5·0 inches, wing 2·4, tail 2·2. _Hab._ Paraguay and Argentina. A specimen of this species, now in the British Museum, was obtained by Durnford at Punta Lara in October 1875. 53. SPERMOPHILA CÆRULESCENS (Vieill.). (SCREAMING FINCH.) +Spermophila cærulescens+, _Scl. Ibis_, 1871, p. 12; _Scl. et Salv. Nomencl._ p. 28; _White, P. Z. S._ 1882, p. 508 (Buenos Ayres); _Barrows, Bull. Nutt. Orn. Cl._ viii. p. 92 (Concepcion); _Sharpe, Cat. B._ xii. p. 126. +Sporophila ornata+, _Burm. La-Plata Reise_, ii. p. 488 (Mendoza, Paraná). +Spermophila ornata+, _Scl. et Salv. P. Z. S._ 1869, p. 632; _Durnford, Ibis_, 1877, p. 170 (Buenos Ayres); _Salv. Ibis_, 1880, p. 353 (Salta). _Description._--Above pale smoky brown; front and lores black; beneath, chin and upper part of throat black, with a distinct white mystacal stripe on each side; fore neck white; broad band across the chest black; abdomen white, slightly varied with grey and black on the flanks; under wing-coverts white; bill pale horn-colour; feet brown: whole length 4·8 inches, wing 2·3, tail 1·9. _Female_ pale olive-brown; wings and tail darker; beneath lighter, tinged with ochraceous; middle of the belly almost white. _Hab._ Southern Brazil, Paraguay, Argentina, and Bolivia.