1917.] Chapman, Distribution of Bird-life in Colombia. 533 



(3509a) Planesticus fuscobrunneus Chapm. 



Planeslicus fuscobrunneus Chapm., Bull. A. M. N. H., XXXI, 1912, p. 158 

 (Cerro Munchique, Col.). 



Char. sp. — -Related to Planesticus atrosericeus (Lafr.) and P. serrana (Tschudi), 

 agreeing in size with the latter, slightly larger than the former; male similar in color 

 to males of atrosericeus and serrana, female much darker; dark olive rather than 

 olive-brown or Saccardo's-brown. 



This representative of P. serrana is known from the Subtropical Zone 

 of the Western and Central Andes. 



San Antonio, 3; Cerro Munchique, 5; La Florida, 2; Sta. Elena, 2. 



(3511) Planesticus leucops {Tacz.). 

 Turdus leucops Tacz., P. Z. S., 1877, p. 331 (Ropobamba, Peru). 



Two males agree with a series from Zamora, southeastern Ecuador, and 

 are distinguished from P. fuscobrunneus, with which they associate, in being 

 somewhat smaller, more glossy, bluer black, and in having the outer primary 

 much smaller. A female resembles one from Zamora, but is somewhat less 

 rufescent. 



San Antonio, 1; "Rio Lima" (Batty), 1; La Candela, 1. 



(3512a) Planesticus caucse Chapm. 



Planesticus caucm Chapm., Bull. A. M. N. H., XXXIII, 1914, p. 182 (La Sierra, 

 6300 ft., Col.). 



Char. sp. — Similar to Planesticus olivater (Lafr.), but plumage grayer, less suf- 

 fused with brownish; male with black of the nape even more sharply defined from the 

 gray of the back; breast grayish its upper part lightly streaked with black, sides of 

 the throat black, the center of the throat and chin streaked with black; female with 

 the crown distinctly darker than the back; the underparts much less brown than in 

 olivater, the throat with but a trace of black shaft-streaks. 



This apparently distinct species is based on four specimens all of which 

 were taken at La Sierra, a locality in the Central Andes, south of Popayan, 

 in heavy forest growth. No form of P. olivater, which it doubtless repre- 

 sents, is known from nearer than the Santa Marta mountains. 



La Sierra, 4. 



(3519) Planesticus phseopygus (Cab.), 

 oygus Cab., Schomb. Reis., Guiana, III, 1848, 



Specimens from southeastern Colombia are somewhat more rufescent 



Turdus phcBopygus Cab., Schomb. Reis., Guiana, III, 1848, p. 666 (British 

 Guiana). 



