BIRDS OF NORTH AND MIDDLE AMERICA, 525 
D{amophila] amabilis Cananis and Hine, Mus. Hein., iii, 1860, 40 (Colombia). 
[Damophila] amabilis SctaterR and Satvin, Nom. Av. Neotr., 1873, 93, part. 
Polyerata amabilis Herne, Journ. fiir Orn., 1863, 194, in text.—Muzsanr and 
VERREAUX, Hist. Nat. Ois.-Mouch., ii, livr. 1, 1875, 52 (Costa Rica; Colom- 
bia; Ecuadér); iv, livr. 3, 1878, 193 (crit.)—Beruzrscu, Journ. fir Orm., 
1884, 312 (Bucaramanga, Colombia); 1887, 333 (Bogot4, Colombia); Proc. 
Zool. Soc. Lond., 1885, 118 (Esmeraldas, w. Ecuadér).—Satvin, Cat. Birds 
Brit. Mus., xvi, 1892, 237 (Costa Rica; Lion Hill, Paraiso Station, and Chepo, 
Isth. Panam4; Antioquia, Quindit Mts., and Bogot4, Colombia; Esmeraldas 
and Balzd4r Mts., w. Ecuadér).—Satvin and Gopman, Biol. Centr.-Am., 
Aves, ii, 1892, 310.—Ricumonp, Proc. U. 8. Nat. Mus., xvi, 1893, 517 (Rio 
Frio, Costa Rica, and Rio Escondido, Nicaragua)—Boucarp, Gen. Hum. 
Birds, 1894, 142, part (Colombia; Ecuadér; San Carlos, Costa Rica) —Har- 
TERT (E. and C.), Novit. Zool., i, 1894, 10 (Nanegél, Ecuadér). 
[Polyerata] amabilis Mutsant, Ann. Soc. Linn. Lyon, n. 8., xxii, 1876, 208. — 
Heine and ReicHEenow, Nom. Mus. Hein. Orn., 1890, 180 (Bogot4). 
[Hylocharis] amabilis Gray, Hand-list, i, 1869, 150, no. 1946. 
Agyrtria amabilis Hartert, Novit. Zool., v, 1898, 517 (crit.).—OBERHOLSER, 
Proc. U. 8. Nat. Mus., xxiv, 1902, 316 (Guayaquil, w. Ecuador; crit.). 
Al[gyrtria] amabilis Haprern, Das Tierreich, Troch., 1900, 48 (monogr.). 
[Agyriria] amabilis Sharps, Hand-list, ii, 1900, 105. 
Agyrtria amabilis amabilis CARRIKER, ron Carnegie Mus., vi, 1910, 525 (Carib- 
bean lowlands, Costa Rica; habits). 
POLYERATA DECORA Salvin. 
CHARMING HUMMING BIRD. 
Similar to P. amabilis, but bill much longer (both relatively and 
absolutely); adult male with whole pileum (that is, occiput as well 
as forehead and crown) brilliant metallic green, chin and upper throat 
dull bronzy or greenish (not appearing black when viewed from in 
front), blue area of lower throat and upper chest narrower and 
decidedly less violaceous, upper tail-coverts usually less purplish 
bronze, middle rectrices olivaceous bronze (never purplish), and rest 
of tail much duller blackish, glossed with bronzy rather than bluish. 
Adult male.—Pileum brilliant metallic green (burnished emerald 
green or slightly yellowish or golden emerald); hindneck, sides of 
head and neck, back, scapulars, and wing-coverts metallic bronze- 
green or greenish bronze, the rump usually more decidedly bronzy; 
upper tail-coverts rather dull bronze or olive-bronze (more rarely 
dull coppery bronze); middle pair of reetrices dull olive-bronze, the 
remaining rectrices dusky, faintly glossed with bronze, the gloss 
becoming more violaceous terminally, especially on outer rectrices; 
remiges dark brownish slate or dusky, glossed with purplish; chin 
and upper throat dull dusky or sooty, the feathers with terminal 
portion metallic green when viewed in certain lights; lower throat 
and upper chest bright metallic blue (cobalt to ultramarine exteriorly, 
more violaceous centrally) ; lower chest dull metallic green or bluish 
green, the feathers margined with pale brownish gray; sides and 
