BIRDS OF NORTH AND MIDDLE AMERICA. 571 



less than two-thirds us 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 tlu'oat sometimes with a small spot of bright metallic 

 blue. Adult females wdiitish 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.) 

 h. Pileum glittering metallic emerald green; a blue or violet spot on lower throat. 

 {Ueliodoxa jacula.) 

 c. Middle rectrices bronze or bronze-gi'een; smaller (wing 72.5-7G, averaging 

 74.3; culmen, 20.5-22.5, averaging 21.3). (Colombia.) 



Heliodoxa jacula jacula, adult male (extralimital).a 

 oc. Middle rectrices blue-black (rarely slightly glossed \\dth 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 

 34); green of pileum rather narrower; under parts of body duller green. 

 (Ecuador.) Heliodoxa jacula jamersoni, adult male (extralimital).^ 



a Ueliodoxa jacula Gould, Proc. Zool. Soc. Lond., 1849, 96 (Bogotii, Colombia; coll. 

 J. Gould); Mon. Troch., pt. ii, 1858, pi. 94; Introd. Troch., oct. ed., 1861, 74; Mul- 

 sant and Verreaux, Hist. Nat. Ois.-Mouch., ii, 1875, 202, pi. 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. — [Lcadbeaicra] 

 jacula Bonaparte, Consp. Av., i, 1850, 70. — [Coeligena. d. Leadbcatera] jacula Reichen- 

 bach, Aufz. der Colibr., 1854, 7. — [Coeligena] jacula Reichenbach, Troch. Enum., 

 1855, 4, pi. 688, fig. 4522. — Clytolxma jacula Mulsant and Verreaux, Classif. Troch., 

 1866, 59.— [Trochilus] jacula Gray, Hand-list, i, 1869, 137, no. 1752. 



b Trochilus jamersoni Bourcier, Compt. Rend., xxxii, 1851, 187. — [Coeligena. d. 

 Leadbcatera] jamersoni Reichenbach, Aufz. der Colibr., 1854, 7. — [Leadbcatera] jamesoni 

 Bonaparte, Compt. Rend., 1854, 251. — n[eliodoxa] jacula jamersoni Hartert, Das 

 Tierreich, Troch., 1900, 123. — Heliodoxa jacula jamersoni Oherholser, Proc. U. S. Nat. 

 Mus., 1902, 324 (Santo Domingo, w. Ecuad6r; crit.). — Heliodoxa jamesoni Gould, 

 Mon. Troch., ii, 1861, pi. 95; Introd. Troch., oct. ed., 1861, 74; Elliot, Classif. and 

 Synop. Troch., 1879, 65; Salvin, Cat. Birds Brit. Mus., xvi, 1892, -^20.— Heliodoxa 

 jacula jamesoni Hartert, Kat. Vogelsamml. Mus. Senckenb., 1891, 115. — Clytolsevia 

 jamesoni Mulsant and Verreaux, Classif. Troch., 1866, 59. 



