388 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



ee. Throat golden green, abdomen greenish blue. (Western Ecuad6r.) 



Chalybura intermedia, adult male (extralimital).« 

 66. Under tail-coverts dusky. (Eastern Nicaragua to western Panam^.) 



Chalybura melanorrhoa, adult male (p. 392). 

 aa. Under parts mostly pale grayish. (Adult females .b) 

 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 caeruleogaster, adult female (extralimital). 

 66. Under tail-coverta gray Chalybura melanorrhoa, adult female (p. 392). 



CHALYBURA BUFFONn (Lesson). 



BUFFON'S PLTTMELETEER. 



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; 



a Chalybura intermedia Hartert (E. and C), Novit. Zool., i, Jan., 1894, 44 (road 

 from Guayaquil to Loja, bet. Pogio and Santa Rosa, w. Ecuador; coll. Tring Mus.). — 

 C[halybura] intermedia Hartert (E.), Das Tierreich, Troch., 1900, 92. — Hypuroptila 

 internudia Boucard, The Hum. Bird, v, 1895, 325 (synonymy; descr.). 



b Females of C. urochrysa and C. isaurx not seen by me. 



c Fifteen specimens. 



