1917.] Chapman, Distribution of Bird-life in Colombia. 403 



grayer, frontal band grayer and wider. Similar to S. a. elegantior Scl., of the re- 

 stricted Bogota region, but lores gray, not white, postooular stripe grayish olive, 

 not pale oohraceous-bxiff ; underparts less white, the breast gray, not white, with or 

 without a faint grayish wash; throat showing more black, flanks and under tail- 

 coverts grayish olive rather than buffy olive; back averaging more ochraceous. 



Inhabits the upper parts of the Subtropical and lower parts of the 

 Temperate Zone (7000 to 10,500 ft.) in the western and Central Andes and 

 southward into Ecuador (Pichincha). 



Cerro Munchique, 6; Valle de las Pappas, 7; Miraflores, 4; Salento, 5; 

 Laguneta, 3; Sta. Elena, 3; Barro Blanco, 1; El Eden, 6; above Ibagiie 

 (7000 ft.), 1; La Candela, 2; La Palma, 3. 



(2310) Synallaxis moesta moesta Scl. 

 Synallaxis moesta Scl., P. Z. S., 1856, p. 26 (Bogotd). 



Common in the Tropical Zone at the eastern base of the Eastern Andes. 

 In the heavy forest of Amazonian Colombia, further south, it is replaced 

 by a darker form which I have described as Synallaxis moesta ohscura. 



Buena Vista, 9; Villa vicencio, 2. 



(2310a) Synallaxis moesta obscura Chapm. 



Synallaxis masta obscura Chapm., Bull. A. M. N. H., XXXIII, 1914, p. 620 

 (La Moreha, Col.). 



Char, subsp. — Similar to jS. m. mmsta Scl. but darker throughout, the upperparts 

 browner, the white streakings of the throat more restricted, the remainder of the 

 underparts nearly one color, the breast of the same olivaceous shade as the sides and 

 flanks instead of being grayer, the abdomen with Httle or no grayish. 



Known only from the Tropical Zone in Amazonian Colombia. 

 La Morelia, 2. 



(2317) Synallaxis albescens albigularis Scl. 



Synallaxis albigularis Scl., P. Z. S., 1858, p. 63 (Rio Napo). 

 Synallaxis albescens Scl. & Salv., P. Z. S., 1879, p. 521( Medellin). 



Inhabits the Tropical Zone from Caldas eastward. In Cauca Valley 

 specimens the breast averages paler than in those from Villavicencio (which 

 doubtless are typical) but the difference is entirely bridged by. individual 

 variation in both series. 



La Frijolera, 1; Caldas, 1; Cali, 3; La Manuelita, 4; Guengiie, 1; 

 Rio Frio, 1; Calamar, 3; Puerto Berrio, 2; Fusugasuga, 1; Quetame, 2; 

 Villavicencio, 4. 



