BIRDS OF NORTH AND MIDDLE AMERICA. 335° 
Adult male——Above metallic bronze (varying from copper-bronze 
to slightly greenish bronze), except pileum, which is uniform dusky; 
upper tail-coverts broadly margined with cinnamon or (sometimes) 
with pale buffy grayish on longer coverts; middle pair of rectrices 
metallic greenish bronze or bronze-green, tipped with white or pale 
grayish buff, and crossed by a narrow subterminal band of black; 
other rectrices clear chestnut or rufous-chestnut, broadly tipped with 
white and crossed by a broad subterminal band of black, the outer 
web of lateral rectrix also mostly black; remiges dusky, faintly 
glossed with violaceous; chin pale grayish cinnamon or dull buffy 
whitish; throat, chest, sides, flanks, and under tail-coverts light 
russet or rusty cinnamon, fading on breast and abdomen into pale 
grayish buffy; maxilla dull black, mandible dusky terminally, paler 
(sometimes dull whitish) basally; iris dark brown; feet dull yellowish 
or buffy (in dried skins); length (skins), 95-104 (101); wing, 50.5-56 
(53.6); tail, 30-34 (31.7); culmen, 30-31.5 (30.6).* 
Adult female—Similar to the adult male, but under parts almost 
wholly and nearly uniformly light russet or rusty cinnamon; length 
(skins), 94-105 (97); wing, 51-54 (52.4); tail, 29.5-33 (31.3); cul- 
men, 30-31.5 (30.7).° 
Costa Rica (San José; Talamanca; Rio Frio; El Hogar; Pozo 
‘Azil de Pirris; Pozo del Rio Grande; El Pozo de Térraba) and Nica- 
ragua (Rio Escondido). 
Glaucis xneus LAWRENCE, Proc. Ac. Nat. Sci. Phila., 1867, 232 (Costa Rica 
coll. U. 8. Nat. Mus.); Ann. Lyc. N. Y., ix, 1868, 121 (Costa Rica).— 
Frantzius, Journ. fiir Orn., 1869, 315 (Costa Rica). 
Glaucis aenea BoucarD, Gen. Hum. Birds, 1895, 365, part (Costa Rica). 
[Glaucis hirsutus}] var. aeneus Mutsant, Ann. Soc. Linn. Lyon, n. »s., xxii, 
1876, 200. 
Glaucis hirsuta eneus Banes, Auk, xxiv, July, 1907, 288, 295 (Pozo del Rio 
Grande, s. w. Costa Rica; crit.) —CarRIKkER, Ann. Carnegie Mus., vi, 1910, 
518 (Costa Rica; crit.; habits). 
Glaucis hirsuta (not Trochilus hirsutus Gmelin) Satvin and Exttort, Ibis, 1873, 
273, part (Costa Rica; synon.; crit.)—Ripeway, Proc. U. 8S. Nat. Mus., 
iii, 1880, 308, part (Costa Rica).—Exior, Classif. and Synop. Troch., 1879, 
6, part (Costa Rica)—Zztepon, Cat. Aves de Costa Rica, 1882, 19; Anal. 
Mus. Nac. Costa Rica, i, 1887, 121 (Pozo Aztl de Pirris, s. w. Costa Rica).— 
Savin, Cat. Birds Brit. Mus., xvi, 1892, 41, 655, part (Costa Rica).—SaLvin 
and Gopman, Biol. Centr.-Am., Aves, i, 1892, 255, part (Costa Rica).— 
RicumonpD, Proc. Zool. Soc. Lond., xvi, 1893, 516 (Rio Escondido, e. Nicara- 
gua).—Harrert, Ibis, 1897, 423, part (crit.). 
[Glaucis] hirsutus ScLaTeR and Satvin, Nom. Av. Neotr., 1873, 78, part. 
G[laucis] hirsuta Hartrert, Das Tierreich, Troch., 1900, 15, part (monogr.). 
[Glaucis] hirsuta SHarre, Hand-list, ii, 1900, 98, part. 
@ Six specimens. b Five specimens, 
