BIRDS OF NORTH AND MIDDLE AMERICA, 539 
c. Flanks mostly metallic green or bronze-green; lateral rectrices broadly tipped 
with pale gray and with basal portion bluish black. 
Lepidopyga ceeruletigolaris, adult female (p. 539). 
cc. Flanks mostly white; lateral rectrices narrowly tipped with pale gray and 
with basal portion extensively bronze or bronze-green. 
Lepidopyga boucardi, adult female (p. 541). 
bb. Chin, throat, and chest mostly green. 
c. Green of chest strongly bluish. 
Lepidopyga ccelina, adult female (extralimital). 
cc. Green of chest not strongly bluish. 
Lepidopyga goudoti, adult female (extralimital). 
LEPIDOPYGA CHRULEOGULARIS (Gould). 
DUCHASSAIN'’S HUMMING BIRD. 
Adult male——Above rather bright metallic green or bronze-green, 
the upper tail-coverts with basal portion usually more decidedly 
bronzy; middle pair of rectrices varying from bronze-green to bronze, 
sometimes darker (rarely blackish) terminally; rest of tail dull blue- 
black or black glossed with bluish; remiges dark brownish slate or 
dusky, faintly glossed with violaceous; chin, throat, and chest 
bright metallic violet-blue, more decidedly violaceous centrally, less 
so (sometimes greenish blue) exteriorly; breast, sides, flanks, and 
abdomen metallic green or bluish green; under tail-coverts bright 
metallic green or bronze-green, broadly margined with white or 
grayish white; femoral tufts white; maxilla dull black, mandible 
pale brownish or dull whitish (pink or reddish in life) with terminal 
portion dusky; iris dark brown; feet dusky; length (skins), 84-97 
(90); wing, 46.5-52 (49.8); tail, 27-34 (31.8); culmen, 16-19 (17.8).¢ 
Adult female——Above metallic bronze-green, the middle pair of 
rectrices more bronzy, darker terminally; other rectrices black, 
faintly glossed with bluish, and broadly tipped with grayish white, 
this more or less clouded with gray, especially on outer web; remiges 
brownish slate or dusky, faintly glossed with violaceous; malar 
region, chin, throat, median portion of chest and breast, abdomen, 
flanks, anal region, and under tail-coverts plain white, faintly tinged 
with pale grayish; sides of chest and breast and anterior portion of 
sides metallic green; bill, etc., as in adult male; length (skin), 89.5; 
wing, 48; tail, 30; culmen, 20. 
Panama (near David; Calobre; Castillo; Laguna del Castillo; 
Cordillera del Chucu; Santa Fé de Verégua; Panama; Punta de 
Sabana, near Panamé; Lion Hill; Paraiso; Colén; Nata, Coclé) and 
northern Colombia (Cartagena; Cienega). 
Trochilus (————?) czruleogularis Goutp, Proc. Zool. Soc. Lond., 1850, 163 
(David, Chiriquf, Panam4; coll. J. Gould). 
@ Nine specimens. b One specimen. 
