460 



BULLETIN 50;, UNITED STATES NATIONAL MUSEUM. 



two or three outermost rectrices), more or less extensively, whitish; 

 median under parts, from chin to anal region, velvety black, this 

 forming a broad stripe, along each side of which extends a broad 

 stripe of white, from base of mandible to thighs^ the sides of neck, sides 

 of chest and breast, sides and flanks metallic bronze or bronze-green ; 

 under tail-coverts bronze-green centrally, passing into grayish 

 basally, margined terminally or tipped (more or less broadly) with 

 whitish or pale grayish; femoral and lumbar tufts white; bill, etc., 

 as in adult male; "length (skms), 103-125 (112); wing, 62.5-67.5 

 (65.2); tail, 33-37 (35.2); culmen, 22-27 (24.1).« 



Young. — Similar to the adult female, but feathers of upper parts, 

 including wing-coverts, tipped with pale brownish buffy, those of 

 sides and flanks similarly but less distinctly marked, and sometimes 

 with the white along each side of median black stripe of under parts 

 intermixed with light brown. 



Panama (Loma del Leon; Paraiso; Panama) and southward 

 through Colombia (Bogota; Masinga, Bonda, Don Amo, and Sierra 

 Nevada, Santa Marta; Cartagena; Cauca Valley; lower Magdalena; 

 Bucaramanga), Venezuela (Cumanacoa; Maipures; Munduapo; Cari- 

 ban; Suapure; Temblador; Andes de Cumana; Merida), British 

 Guiana (Demerara; Roraima; Aunai), Cayenne and Brazil (Mexiana 

 Island; Para; Santarem; Bahia; Rio de Janeiro; Pernambuco; Santa 

 Clara, Goiaz; Tonantins; Humaytha, Rio Madeira; Teffe; Piquete, 



o Twenty-three specimens. 



Locality. 



MALES. 



Five adult males from Panama 



Ten adult males from Colombia 



Five adult males (A. v. iridesccns) from western Ecuador. . 



One adult male from eastern Peru 



One adult male from St. Andrews Island 



Three adult males from Venezuela 



Seven adult males from Trinidd,d 



Two adult males from British Guiana and Cayenne 



Five adult males from eastern Brazil (mostly from Bahia). 



FEMALE.S. 



Four adult females from Panamd 



Six adult females from Colombia 



Two adult females {A. v. iridcst.cns) from western Ecuad6r 



Two adult females from Venezuela 



t'our adult females from Trinidiid 



T wo adult females from (^ayenne and British (Juiana 



Five adult females from eastern Brazil (Bahin, etc.) 



Ex- 

 posed 

 culmen. 



22.8 

 23.8 

 25.3 

 22.5 



24.7 

 23.6 

 24.5 

 22.7 



22.6 



24. 7 



27.2 



26.2 



24 



23.5 



24 



