AVES FRINGILLID/E. 845 



inches; wing, 3.40; culmen, .42; tail, 2.50; tarsus, i.oo. Above, uniform 

 bluish slate, paler below, feathers of the crown with dusky centers ; wings 

 and tail black with bluish slate edgings. 



Female (60075 A. N. S. Phila., Mt. Pichincha, Ecuador, May i, 191 1. 

 S. N. Rhoads) entirely different, dark brown coarsely streaked with black- 

 ish above, below white, tinged with buffy on the throat and breast and 

 everywhere strongly streaked with blackish, wings and tail blackish brown, 

 bordered with paler. 



Geographical Range. — Andes from Colombia to Chili. 



Genus DIUCA Reichenbach. 



Type. 



Diuca Reichenbach, Av. Syst. pi. Ixxviii. (1850) . Friugilla diuca Molina. 



DiucA DIUCA (Molina). 



Fringilla diuca Molina, Sagg. St. Nat. Chil. p. 249, 1782 (Chili). 



Dolichonyx grisea Lesson, L'Inst. ii. p. 316, 1834. 



Pipilo cinerea Peale, U. S. Expl. Exp. Birds, p. 123, 1848 (Valparaiso to 



Santiago). 

 Diuca vera Burmeister, J. f O. i860, p. 255 (Cordilleras of Mendoza). 



Description. — Adult male, 10683 A. N. S. Phila., Chili. Total length, 

 7.30 inches ; wing, 3.62 ; culmen, .58 ; tail, 2.90 ; tarsus, i.oo. Upper parts, 

 sides and a broad breast band clear gray; throat, abdomen and under tail 

 coverts white and the region of the crissum chestnut. Wings dull 

 blackish with gray edgings ; tail similar but the outermost pair of feathers 

 with a long white area on the inner web and middle part of the outer web 

 white, the next three (or four) pairs with white tips on the inner webs. 



Female tinged with brownish when the male is gray. 



Geographical Range. — Chili south to Straits of Magellan, and across 

 the Andes to Lake Nahuel Huapi. 



Not seen by the Princeton expeditions. 



A. A. Lane, who studied it in Chili, says: "This bird competes with 

 the Pileated Song-Sparrow for being the most abundant species in Chili, 

 and in the central and southern provinces fairly beats it. It is a resident, 

 I think, everywhere. 



" I do not exactly know its northern limit, but, so far as I could ascertain, 

 it stretches up to the commencement of the desert portion of Chili, occur- 

 ring up to the base of the Andes as far as cultivation extends. In the 



