BIEDS OF NORTH AND MIDDLE AMERICA. , 509 



(on both webs) with, dusky; remiges dusky, faintly glossed with 

 violet; a conspicuous postocular streak of white passing obliquely 

 backward and downward along upper margin of auricular region; 

 auricular region and sides of neck deep green, like upper parts; 

 under parts mostly metallic grass-green, but this much broken by 

 white or grayish white margins to the feathers and by a white sub- 

 terminal bar to feathers of throat; femoral and lumbar tufts, anal 

 region, and extreme lower abdomen (medially) white; under tail- 

 coverts white with a centi'al area of gray; bill black; iris dark brown; 

 feet brownish (in dried skins); length (skins), 104-113 (108); wing, 

 62.5-67.5 (65.2); tail, 38.5-42 (39.8); culmen, 20-22 (21.1).« 



Adult female. — Above as in adult male, but outermost rectrix white 

 or grayish white (without gray margin), the inner web with a sub- 

 terminal bar (more or less distinct) of dusky gray, the second rectrix 

 with a similar bar across both webs; chin and throat buff, or white 

 tinged with buff; rest of luider parts mainly grayish white, the sides 

 of breast mostly metallic green; length (skins), 99-102 (101); wing, 

 56.5-60 (58.4); tail, 34-37.5 (35.7); culmen, 22.^ 



Highlands of northern Nicaragua (Matagalpa; San Rafael del 

 Norte; Ocotal). 



Ddaffria syhiUse Salvin and Godman, Ibis, April, 1892, 327 (Matagalpa, Nicara- 

 gua; coll. Salvin and Godman); Biol. Centr.-Am., Aves, ii, 1892, 337, pl. 

 54A, figs. 3, 4 (Matagalpa and San Rafael del Norte, Nicaragua). — Salvin, 

 Cat. Birds Brit. Mus., xvi, 1892, 664. 



Delattria sybille Boucard, Gen. Hum. Birds, 1895, 220 (Matagalpa). 



[Coeligena] syhiUae Simon, Cat. Troch., 1897, 25. 



C[oelicj€na\ sybillae Hartert, Das Tierreich, Troch., 1900, 115 (monogr.). 



[Coeligena] i<yhiUic Sharpe, nand4ist, ii, 1900, 123. 



OREOPYRA VIRIDIPALLENS (Bourcier and Mulsant). 



GREEN-THROATED MOUNTAIN GEM. 



Adult male. — Foreliead and crown metallic grass green, changing 

 to brilliant, more emerald, green in position a, the occiput and hind- 

 neck more bronzy green; back, scapulars, and wing-coverts bronze- 

 green or greenish bronze, passing into bronze or coppery bronze on 

 rump; upper tail-coverts dull blackish, faintly glossed with bluish or 

 bronzy purplish; four middle rectrices dusky slate or slate-blackish, 

 faintly glossed with bluish, the rest of tail similar but paler and 

 grayer (especially the outermost pair), indistinctly darker terminally 

 and along edge; remiges purplish dusky; a conspicuous postocular 

 streak of white, extending obliquely backward and downward, and 

 below this an auricular area of dusky metallic bronze-green (more 

 brilliant in position a), continued beneath eye to loral region; malar 

 region, chin, throat, chest, median portion of breast, and abdomen 



« Eight specimens. b Hve specimens. 



