BIRDS OF NORTH AND MIDDLE AMERICA. 403 
metallic green; bill black, the mandible pale brownish basally; iris 
dark brown; feet dusky; length (skins), 74-88 (80); wing, 49-54.5 
(50.3); tail, 26.5-30.5 (28.3); culmen, 14-15.5 (14.7).¢ 
Adult female.—Above bright metallic grass green or bronze-green, 
the longer upper tail-coverts and four middle rectrices metallic 
bronze or greenish bronze; three lateral pairs of rectrices white, the 
third very broadly tipped with black, the fourth and fifth crossed 
by a broad subterminal band of the same; remiges dusky, faintly 
glossed with purplish; chin, throat, median line of chest and breast, 
abdomen, hinder flanks, anal region, and under tail-coverts pure 
white, the lower throat and chest sometimes flecked with metallic 
green; rest of under parts metallic emerald green, the feathers gray- 
ish beneath surface; bill blackish, the mandible paler basally; iris 
dark brown; feet brownish (in dried skins); length (skins), 74-80 
(76); wing, 45.5-48 (46.8); tail, 24-26.5 (25.4); culmen, 14.5-15.5 
(15.1).2 
Western Panama (Calovévora; David; Boquete; Volcén de Chiri- 
qui) and southwestern Costa Rica (Dota; Santa Maria and Laguaria, 
Dota; Boruca). 
Trochilus (Thaumatias) chionura Gouup, Proc. Zool. Soc. Lond., 1850, 162 
(David, Chiriquf, Panamé, alt. 2,000-3,000 ft.; coll. J. Gould). 
Thaumatias chionurus Goutp, Mon. Troch., v, pt. iii, 1852, pl. 300; Introd. 
Troch., oct. ed., 1861, 153—Lawrencz, Ann. Lyc. N. Y., viii, 1868, 349 
(crit.) —Ettiot, Ibis, 1878, 48 (Costa Rica; synon.; crit.) —Boucarp, 
Notes quelques Troch., 1873, 11 (Costa Rica; Panama). 
[Thaumatias] chionurus ScLateR and Satvin, Nom. Av. Neotr., 1873, 92. 
[Thaumantias] chionura Bonaparte, Rev. et Mag. de Zool., 1854, 255. 
Thaumantias chionurus Sauvin, Proc. Zool. Soc. Lond., 1867, 156 (Dav‘d, etc., 
Panama; crit.); 1870, 210 (Volc4n de Chiriquf and Calovévora, Panam4). 
[Leucippus] chionurus ReicHenBacn, Aufz. der Colib., 1854, 11; Troch. Enum., 
1855, 8, pl. 780, figs. 4313-4315. 
Algyrtria] chionura CaBants and Herne, Mus. Hein., iii, 1860, 32, footnote 
(Verégua).—Heine, Journ. fiir Orn., 1863, 183. 
Elvira chianura Mutsant and VERREAUX, Classif. Troch., 1866, 32. 
Eupherusa chionura Lawrence, Ann. Lyc. N. Y., ix, 1868, 127 (Dota, Costa 
Rica).—Franvrzius, Journ. fiir Orn., 1869, 317 (Costa Rica). 
a Thirteen specimens. > Eight specimens. 
Ex- 
Locality. Wing. | Tail. | posed 
culmen. 
MALES 
Five adult males from Costa Rica..........2-.--02-ee eee cee eee ee eee eee e eee eeeee 49.9 27.4 14.6 
Eight adult males from western Panamé...........-2------20 eee ee eee eee 50.7 28.8 14.7 
FEMALES. 
Six adult females from Costa Rica..............2..-0 2-2 ee cece eee eee eee eee teens 46.8 25. 4 15.1 
Two adult females from western Panam4........-...---------0ce eee eee eee eee ee 46.7 25.5 15 
