BIRDS OF NORTH AND MIDDLE AMERICA. 397 
grayish brown (in dried skins); length (skins), 88-100 (96); wing, 
58-62 (60.1); tail, 33-37 (34.9); culmen, 17-19.5 (18.6). 
Adult female—Above similar to the adult male, but outermost 
rectrix white without blackish tip, the outer web merely edged 
with dusky terminally; secondaries less extensively cinnamomeous; 
under parts pale brownish gray, glossed or spotted with metallic 
bronze-green laterally, the under tail-coverts, etc., as in adult male; 
length (skins), 87-95 )91); wing, 53.5-56 (54.9); tail, 30-34 (31.9); 
culmen, 17.5-20 (18.9). 
Young male.—Similar to the adult male but bright green of 
under parts more restricted, first appearing in spots on throat and 
chest, the general surface being grayish glossed with bronze-green, 
fading into whitish posteriorly. 
Costa Rica (Cervantes; Cervantes de Cartago; Azahar de Cartago; 
Barranca; Navarro; Volca4n de Irazti; Coliblanco; Juan Vifas; 
Tenério; Cerro de Santa Maria; Las Cruces de Candelaria; Volcan 
de Barba; San Cristébal; Ojuros de Térraba) and western Panama 
(Volcan de Chiriqui; Boquete; Castillo; Calovévora). 
Eupherusa egregia ScLATER and Satvin, Proc. Zool. Soc. Lond., 1868, 389 (Castillo 
and Calovévora, Panamé; coll. Salvin and Godman).—Satvin, Ibis, 1869, 
316 (crit.); Proc. Zool. Soc. Lond., 1870, 210 (Verdgua; crit.); Cat. Birds 
Brit. Mus., xvi, 1892, 73 (Costa Rica; Volc4n de Chiriquf, Castillo; Calové- 
vora).—MvuisanT and VERREAUX, Hist. Nat. Ois.-Mouch., i, livr. 4, 1874, 
274; iv, livr. 3, 1878, 179.—Boucarp, Notes quelques Troch., 1873, 13 (Ver4- 
gua); Proc. Zool. Soc. Lond., 1878, 71 (Navarro, Costa Rica); The Hum. 
Bird, ii, 1892, 81 (Ver4gua); Gen. Hum. Birds, 1895, 170 (Verdgua; Costa 
Rica).—Etuiot, Classif. and Synop. Troch., 1879, 218.—ZELEp6n, Cat. 
Aves de Costa Rica, 1882, 21; Anal. Mus. Nac. Costa Rica, i, 1887, 122 (Cer- 
. vantes de Cartago, Costa Rica).—Ssarps, Suppl. Gould’s Mon. Troch., 
1885 (text).—SaLvin and Gopman, Biol. Centr.-Am., Aves, ii, 1892, 272.— 
Banes, Proc. New Engl. Zool. Club, iii, 1902, 29 (Boquete and Volc4n de 
Chiriqui, Panam4, 6,000-7,000 ft.)—Carriker, Ann. Carnegie Mus., vi, 
1910, 534 (Costa Rica).—Frrry, Pub. 146, Field Mus. N. H., orn. ser., i 
no. 6, 1910, 263 (Coliblanco, Costa Rica). 
[Eupherusa] egregia SctatEeR and Satvin, Nom. Av. Neotr., 1873, 92.—SHarpPe, 
Hand-list, ii, 1900, 116. 
E{upherusa] egregia Hartert, Das Tierreich, Troch., 1900, 89. 
[Polytmus] egregius Gray, Hand-list, i, 1869, 133, no. 1701. 
[Euphrerusa] egregia Mutsant, Ann. Soc. Linn. Lyon, xxii, 1876, 205. 
Eupherusa eximia (not Ornismya eximia Delattre) Lawrence, Ann. Lyc. N. Y., 
ix, 1868, 127 (Cervantes and Barranca, Costa Rica; crit.), 146 (crit.).— 
Franrtazivs, Journ. fir. Orn., 1869, 317 (Costa Rica). 
EUPHERUSA POLIOCERCA Elliot. 
WHITE-TAILED HUMMING BIRD. 
? 
Differing conspicuously from its congeners in having the inner 
webs of four (instead of only two) pairs of rectrices white, their 
outer web and tip of inner web gray instead of blackish. 
@ Highteen specimens. 
