BIRDS OF NORTH AND MIDDLE AMERICA. 571 
less than two-thirds as long in females, forked in the former, deeply 
emarginate in the latter, the rectrices broad, rounded or subangular 
at tip. 
Coloration Above mainly metallic green or bronze-green, the tail 
blackish (sometimes with middle rectrices greenish or bronzy). 
Adult males with forehead and crown glittering metallic green or 
violet-blue, under parts metallic green (very brilliant or glittering 
anteriorly), the throat sometimes with a small spot of bright metallic 
blue. Adult females whitish beneath (sometimes buffy posteriorly) 
spotted with bright metallic green, the lateral rectrices tipped with 
whitish. 
Range.—Costa Rica to British Guiana, Bolivia, and Peru, in higher 
mountains. (Seven species.) 
KEY TO THE SPECIES AND SUBSPECIES OF HELIODOXA. 
a. Under parts brilliant metallic green (with or without blue or violet spot on throat). 
(Adult males.) 
b. Pileum glittering metallic emerald green; a blue or violet spot on lower throat. 
(Heliodoxa jacula.) 
c. Middle rectrices bronze or bronze-green; smaller (wing 72.5-76, averaging 
74.3; culmen, 20.5-22.5, averaging 21.3). (Colombia.) 
Heliodoxa jacula jacula, adult male (extralimital).¢ 
oc. Middle rectrices blue-black (rarely slightly glossed with green or bronze- 
green); larger (wing 73.5-79, averaging more than 75; culmen 23-26, averag- 
ing more than 21.5). 
d. Bill longer (exposed culmen 23-26, averaging 24.8); tail shorter and less 
deeply forked (49-52, averaging 51.8; middle rectrices 32.5-36, averaging 
84); green of pileum rather narrower; under parts of body duller green. 
(Ecuadér.)......--. Heliodoxa jacula jamersoni, adult male (extralimital).6 
@ Heliodoxa jacula Gould, Proc. Zool. Soc. Lond., 1849, 96 (Bogota, Colombia; coll. 
J. Gould); Mon. Troch., pt. ii, 1858, pl. 94; Introd. Troch., oct. ed., 1861, 74; Mul- 
sant and Verreaux, Hist. Nat. Ois.-Mouch., ii, 1875, 202, pl. 46; Elliot, Classif. and 
Synop. Troch., 1879, 64, part; Salvin, Cat. Birds Brit. Mus., xvi, 1892, 319, part.— 
H[eliodoxa] jacula (typica) Hartert, Das Tierreich, Troch., 1900, 122.—[Leadbeatera] 
jacula Bonaparte, Consp. Av., i, 1850, 70.—[Coeligena. 0. Leadbeatera] jacula Reichen- 
bach, Aufz. der Colibr., 1854, 7.—[Coeligena] jacula Reichenbach, Troch. Enum., 
1855, 4, pl. 688, fig. 4522.—Clytolema jacula Mulsant and Verreaux, Classif. Troch., 
1866, 59.—[ Trochilus] jacula Gray, Hand-list, i, 1869, 137, no. 1752. 
6 Trochilus jamersonit Bourcier, Compt. Rend., xxxii, 1851, 187.—[Coeligena. 0. 
Leadbeatera] jamersoni Reichenbach, Aufz. der Colibr., 1854, 7.—[Leadbeatera] jamesoni 
Bonaparte, Compt. Rend., 1854, 251.—H[eliodoxa] jacula jamersoni Hartert, Das 
Tierreich, Troch., 1900, 123.—Heliodoxa jacula jamersont Oberholser, Proc. U. 8. Nat. 
Mus., 1902, 324 (Santo Domingo, w. Ecuadér; crit.).—Heliodoxa jamesoni Gould, 
Mon. Troch., ii, 1861, pl. 95; Introd. Troch., oct. ed., 1861, 74; Elliot, Classif. and 
Synop. Troch., 1879, 65; Salvin, Cat. Birds Brit. Mus., xvi, 1892, 320.—Heliodoxa 
jacula jamesoni Hartert, Kat. Vogelsamml. Mus. Senckenb., 1891, 115.—Clytolema 
jamesoni Mulsant and Verreaux, Classif. Troch., 1866, 59. , 
