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 Cartage; 

 Barranca; Navarro; Volcan de Irazii; Coliblanco; Juan Vinas; 

 Tenorio; Cerro de Santa Maria; Las Cruces de Candelaria; Volcan 

 de Barba; San Cristobal; Ojuros de Terraba) and western Panama 

 (Volcan de Chiriqui; Boquete; Castillo; Calovevora). 



Eupherusa egregia Sclater and Salvin, Proc. Zool. Soc. Lond., 1868, 389 (Castillo 

 and Calovevora, Panama; coll. Salvin and Godman). — Salvin, Ibis, 1869, 

 316 (crit.); Proc. Zool. Soc. Lond., 1870, 210 (Veragua; crit.); Cat. Birds 

 Brit. Mus., xvi, 1892, 73 (Costa Rica; Volc&n de Chiriqui, Castillo; Calove- 

 vora). — MuLSANT and Verreaux, Hist. Nat. Ois.-Mouch., i, livr. 4, 1874, 

 274; iv, li\T. 3, 1878, 179.— Boucard, Notes quelques Troch., 1873, 13 (Vera- 

 gua); Proc. Zool. Soc. Lond., 1878, 71 (Navarro, Costa Rica); The Hum. 

 Bird, ii, 1892, 81 (Veragua); Gen. Hum. Birds, 1895, 170 (Veragua; Costa 

 Rica). — Elliot, Classif. and Synop. Troch., 1879, 213.— Zeledon, Cat. 

 Aves de Costa Rica, 1882, 21; Anal. Mus. Nac. Costa Rica, i, 1887, 122 (Cer- 

 vantes de Cartago, Costa Rica). — Sharpe, Suppl. Gould's Mon. Troch., 

 1885 (text).— Salvin and Godman, Biol. Centr.-Am., Aves, ii, 1892, 272.— 

 Bangs, Proc. New Engl. Zool. Club, iii, 1902, 29 (Boquete and Volcan de 

 Chiriqui, Panama, 6,000-7,000 ft.). — Carriker, Ann. Carnegie Mus., vi, 

 1910, 534 (Costa Rica).— Ferry, Pub. 146, Field Mus. N. H., orn. ser., i, 

 no. 6, 1910, 263 (Coliblanco, Costa Rica). 



[Eupherusa] egregia Sclater and Salvin, Nom. Av. Neotr., 1873, 92. — Sharpe, 

 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 Mulsant, Ann. Soc. Linn. Lyon, xxii, 1876, 205. 



Eupherusa eximia (not Ornismya eximia Delattre) Lawrence, Ann. Lye. N. Y., 

 ix, 1868, 127 (Cervantes and Barranca, Costa Rica; crit.), 146 (crit.).— 

 Frantzius, Joum. fiir. Om., 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. 



« Eighteen specimens. 



