388 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 
ee. Throat golden green, abdomen greenish blue. (Western Ecuadér.) 
Chalybura intermedia, adult male (extralimital).¢ 
bb. Under tail-coverts dusky. (Eastern Nicaragua to western Panam4.) 
Chalybura melanorrhoa, adult male (p. 392). 
aa. Under parts mostly pale grayish. (Adult females.>) 
b. Under tail-coverts white. 
c. Lateral under parts with little green admixture; lateral rectrices more broadly 
tipped with pale gray or grayish white. 
Chalybura buffonii, adult female (p. 381). 
cc. Lateral under parts extensively spotted or overlaid by green; lateral rectrices 
more narrowly tipped with pale gray or grayish white. 
Chalybura ceruleogaster, adult female (extralimital). 
bb. Under tail-coverts gray......... Chalybura melanorrhoa, adult female (p. 392). 
CHALYBURA BUFFONIT (Lesson). 
BUFFON’S PLUMELETEER. 
Adult male-——Above deep metallic grass green, slightly duller on 
pileum, the upper tail-coverts more bronzy, the middle rectrices 
metallic bronze or greenish bronze, sometimes blackish, more or 
less glossed with bronzy; rectrices (except middle pair) blue-black, 
usually edged more or less broadly with bronzy, at least toward 
base, the outer web of pair next to middle sometimes almost wholly 
bronzy; remiges dull brownish slate or dusky, faintly glossed with 
purplish, the inner secondaries mostly metallic grass green; under 
parts metallic dark emerald green or clear metallic grass green, the 
feathers grayish basally and crossed by a subterminal bar (con- 
cealed) of white or grayish white, and narrowly margined with pale 
grayish, forming a squamated appearance when viewed from be- 
hind; femoral tufts, anal region, and under tail-coverts pure white; 
bill ‘dull’ black; iris dark brown; feet brownish (in dried skins); 
length (skins), 110-129 (119); wing, 67.5-73 (69.9); tail, 39.5-48.5 
(43.3); culmen, 23-27 (24.6).° 
Adult female—Above similar to adult male, but lateral rectrices 
rather broadly tipped with pale gray; under parts, including malar 
and suborbital regions, pale gray, usually glossed or spotted, more 
or less, with metallic green laterally, sometimes over whole surface; 
@ Chalybura intermedia Hartert (E. and C.), Novit. Zool., i, Jan., 1894, 44 (road 
from Guayaquil to Loja, bet. Pogio and Santa Rosa, w. Ecuadér; coll. Tring Mus.).— 
C[halybura] intermedia Hartert (E.), Das Tierreich, Troch., 1900, 92.—Hypuroptila 
intermedia Boucard, The Hum. Bird, v, 1895, 325 (synonymy; descr.). 
b Females of C. urochrysa and C. isaurx not seen by me. 
¢ Fifteen specimens. 
