32 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 74 



specimens) : Wing, 66-69 (67.5) ; tail, 57-59 (58) ; bill, 11-12 (11.5) ; 

 tarsus, 22-23 (22.5). 



Range. — Andes of Ecuador, on the eastern or Amazonian slope 

 (except in the southern portion), in the Subtropical Zone, 



Remarks. — A well-marked race, described by Doctor Chapman 

 after comparison with a good series of the typical form. In its 

 greener upper parts and yellower under parts this race approaches 

 still more closely to B. coronatus than does tj-pical castaneiceps. The 

 color of the coronal spot varies from amber brown to raw sienna. It 

 is confined to the Subtropical Zone of the Amazonian slope in Ecua- 

 dor, but is replaced toward the south, however, by the typical race, 

 which here occupies both slopes of the Andes. 



SpecimeTis examined. ■^-EACMO.diOv. Galgalan (10,000 feet), Rio 

 Upano, 1; Baeza, 4; above Baeza, 3; Ayacachi, 3; Puente del Rio 

 Quijos, 1; Lower Rio Jardinas, 1; upper Rio Sumaco, 6 (including 

 type) ; San Rafael, 1; Machay, 1. Total, 21. 



BASILEUTERUS CASTANEICEPS CHAPMANI, new subspecies 



Basileuterus castaneiceps (not of Sclater and Salvin) Taczanowski, Proc. 

 Zool. Soc, London, 1879, p. 223 (Tambillo, Peru ; Orn. Perou, vol. 1, 1884. 

 p. 474, Tables, p. 29 (Cutervo and Tambillo, Peru ; descr. ; refs. ; habits) . — 

 Sharpb, Cat. Birds Brit. Mus., vol. 10, 1885, p. 389, part (Tambillo, 

 Peru). — Stolzmann, Proc. Zool. Soc. London, 1885, p. 423 (plum.; 

 range). — Chapman, Amer. Mus. Nov. No. 143, 1924, p. 9, in text, part 

 (Chaupe, Peru). 



Type. — Xo. 181,624, Collection American Museum of National His- 

 tory, adult male; Chaupe (6,100 feet), north Peru, February 14. 

 1923; H. Watkins. 



Subspecific characters. — Similar to Basileuterus castaneiceps cas- 

 taneiceps, but upper parts, etc., darker and browner (medal bronze) ; 

 coronal stripe averaging darker (near Sudan brown) ; and under 

 parts with more grayish suffusion on the throat and breast. 



Measurements. — Male (five specimens) : Wing, 66-72 (average, 

 68.5) ; tail, 58-63 (60.5) ; bill, 11-12 (11.5) ; tarsus, 21-23 (22). Fe- 

 male (one specimen) : AVing, 63; tail, 57; bill, 13 (?) ; tarsus, 21.5. 



Range. — Subtropical Zone, Andes of northern Peru. 



Remarks. — In its darker general coloration this southern race of 

 castaneiceps lies at the opposite extreme from orientalis, and is as 

 easily recognizable as that form. The peculiarities of Peruvian 

 specimens were first remarked by TaczanoAvski and von Berlepsch." 

 who, however, did not formally separate them, nor did Doctor Chap- 

 man see fit to do so when describing his arlentalis. With six speci- 

 mens before me, including two from Tambillo, collected b}' M. Stolz- 

 mann, I find the differences above given so constant and pronounced 



' Proceedings Zoologrlcal Society of London, 1885, p. 74. 



