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 (skins), 103-125 (112); wing, 62.5-67.5 
(65.2); tail, 33-87 (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. 
Panamé (Loma del Leén; Paraiso; Panamé) and southward 
through Colombia (Bogoté; Masinga, Bonda, Don Amo, and Sierra 
Nevada, Santa Marta; Cartagena; Cauca Valley; lower Magdalena; 
Bucaramanga), Venezuela (Cumanacoa; Maipures; Munduapo; Cari- 
ban; Suapuré; Tembladér; Andes de Cumané; Mérida), British 
Guiana (Demerara; Roraima; Aunai), Cayenne and Brazil (Mexiana 
Island; Par4; Santarem; Bahia; Rio de Janeiro; Pernambuco; Santa 
Clara, Goiaz; Tonantins; Humaytha, Rio Madeira; Teffé; Piquete, 
a Twenty-three specimens. 
Ex- 
Locality. Wing. | Tail. | posed 
lculmen. 
MALES. 
Five adult males from Panamé..............--..-2---+-- eine astrsae des 66.5 36.7 22.8 
Ten adult males from Colombia.................. 2-22 - cece e eee eee eee e eee eens 66.7 36.9 23.8 
Five adult males (A. v. iridescens) from western Ecuad6r...........-..--..--+- 67.2 87 25.3 
One adult male from eastern Peru...........-------------- 68 36 22.5 
One adult male from St. Andrews Island. . 
Three adult males from Venezuela. 
Seven adult males from Triniddd..........-.-.222.-222.+-- 
70 37.5 |.....--- 
67.5 37.2 24.7 
67.4 38.6 23.6. 
Two adult males from British Guiana and Cayenne........ --| 66 36 24.5 
Five adult males from eastern Brazil (mostly from Bahia)................. --| 66.3 37.2 DOF 
FEMALES. 
Four adult females from Panamé.............----. 002s eee ee eee eee cence eens 64.5 34.7 22.6 
Six adult females from Colombia.........-------------2-2--2 esse eee 65.1 35.2 24.7 
Two adult females (A. v. iridescens) from western Ecuadér 69.5 37 27.2 
Two adult females from Venezuela.........-.-..---- 22. eee e eee eee ee 65.5 35.5 26.2 
four adult females from Trinidéd......-.....-....-2..22- 2.222 eee 65.4 34.9 24 
Two adult females from Cayenne and British Guiana............... 65.5 | 35.7 23.5 
Five adult females from eastern Brazil (Bahia, etc.)...-.-.....--...2-2-. 2.2.22 65.5 35.2 24 
